Wu Guanghui, chief designer of Comac C919 and ARJ21, has won the national special prize for scientific and technological progress and the first prize for national defense scientific and technological achievements. A key model won the first prize of China Aviation Industry Corporation I and the first prize of the National Defense Science, Technology and Industry Committee.

　　"Many aircraft parts are made in China and fly in the sky every day. C919 has gone through nearly seven years, and has done a lot of design, calculation and experiments. I am definitely willing to take this plane first. "

　　— — Wu Guanghui

　　These days, in the commercial aircraft test center of China Commercial Aircraft Corporation, the newly-built Zhuqiao test hangar in Pudong is spacious and bright. In the hangar, the landing gear that originally supported the domestic large passenger plane C919 was all put into the landing gear cabin, and three air springs like "jacks" lifted the plane into mid-air. What is going on here is the ground resonance test and modal coupling test of the whole aircraft that must be completed before the first flight, which means that the C919 has officially entered the final sprint stage before the first flight.

　　C919 is a domestic large passenger plane independently designed and developed by China. It is a short-haul single-aisle narrow-body passenger plane with more than 150 seats. In the future, it will compete with internationally renowned commercial aircraft such as Airbus 320 series and Boeing 737 series for orders. The manufacturer China Commercial Aircraft Co., Ltd. recently announced that the C919 plans to make its first flight in the first half of 2017 and will fully launch the wide-body passenger aircraft project. It can be said that after nearly 10 years of hard work, China people’s dream of "big plane" will soon become a reality.

　　① Rigorous test to ensure safety.

　　To fly into the blue sky, a plane must first practice a pair of steel bars and iron bones. For the C919, which carries the dream of a big plane for Chinese people, the significance of the test is even more significant. This is the first large passenger plane made by China people, and its safety cannot be lost.

　　For this reason, C919 has undergone a series of tests like "torture". Among them, the 2.5g static test of the whole aircraft started in early November last year is the most severe and significant one since the birth of the C919.

　　This test mainly tests the strain and deformation of the "skeleton" of the body under constant external loading. In layman’s terms, this kind of test is to let the aircraft simulate the stress situation when challenging air flight on the ground, and go beyond the natural limit to verify how much force the aircraft can bear.

　　Before the start of the experiment, the researchers covered the whole body with white adhesive tape, which is a resistance strain gauge that can sensitively measure stress and strain close to the surface of the body, just like doing electrocardiogram for the plane. During the test, the load starts to rise at the level of 5%, and the load must be kept for 3 seconds every time. "The structure must be able to withstand the ultimate load for 3 seconds without damage." Zhou Liang Dao, deputy chief designer of the C919 passenger plane, said that the preparation behind the team took more than 300 days for this short three seconds.

　　With the continuous loading, the aircraft began to show obvious external reflection, and the wing began to tilt up a little. Finally, when the load reaches 100% of the test outline, the wing tip tilts up to nearly 2 meters, which is highly consistent with the strength analysis before the test, which shows that the test is successful and its strong "bones" and body are enough to support flying into the blue sky.

　　This is just a small step in the long March before the first flight of the plane. A passenger plane has to complete 13 static tests in 48 working conditions, including pressurization in the booster cabin, front lifting connection, main lifting connection, whole aircraft condition, vertical tail and rudder, as well as "three-bird test" such as iron bird, copper bird and electric bird and joint test of the whole aircraft system. Therefore, researchers have made independent innovations in system integration experiments.

　　In the comprehensive test hall of Shanghai Aircraft Design and Research Institute, the iron bird test-bed with little difference from the C919 real machine looks like an eagle with wings spread and its tail stuck high. Don’t underestimate this test-bed. Its full name is "Integrated Test-bed for Flight Control Hydraulic System", which mainly tests the landing gear, wings and other mechanical systems of aircraft. In order to ensure the authenticity of the system test, the iron bird test-bed is designed according to the 1:1 ratio of the real aircraft, so that the mechanical installation interfaces of the flight control, hydraulic and landing gear systems are the same as those of the aircraft.

　　Next to the Iron Bird Test Bench, there is also a "Copper Bird" that tests power supply systems such as power generation and distribution, and also restores the real state of the machine to 1:1 for equipment installation. "Iron Bird", "Copper Bird" and the avionics system test called "Electric Bird" will eventually be all connected, thus forming a "three-bird joint test" to simulate the state of the aircraft.

　　In the experiment, researchers conducted a comprehensive test on the aircraft system. Take the avionics system as an example. At most, there are more than 100,000 parameters in a test. These parameters should be tested one by one to find out the possible omissions in the design. "Our goal is not to take the fault to the sky." Yu Shenghui, senior engineer of the General Aerodynamics Department of Shanghai Aircraft Design and Research Institute, said.

　　According to the plan, six testing machines are carrying out joint testing of the whole machine system, and customer service engineering and airworthiness work are also being carried out simultaneously.

　　②C919 is genuine China goods.

　　As the first large passenger plane with completely independent intellectual property rights in China, C919 has been frequently questioned since it was established in 2006: an aircraft whose engine, avionics core processing system and some materials all depend on foreign products or technologies, why should it be said to be "made in China"?

　　In fact, to evaluate the innovation of C919, we may need to draw lessons from a fairy tale named Pony Crossing the River. This story is about a pony crossing a river. A cow next to it said, "The water is very shallow, just without a calf, so you can cross it." But the squirrel in the tree said, "The water is deep and will drown." So, is the river deep or shallow? Finally, the pony got off the river by himself and carefully waded to the other side. It found that the river was neither as shallow as the cow said, nor as deep as the squirrel said. The same is true for the development and innovation of C919. Everyone should not only see the major innovations achieved in the process of aircraft development, but also objectively admit the existing shortcomings.

　　According to international standards, judging whether an airplane is made in China or assembled depends on whether it meets three conditions. 1. Who owns the property right of the whole machine? Second, who is the core team to develop the whole machine? Third, who holds the key link in the development of the whole machine? For C919, the answer to these three questions is China.

　　The person in charge of Comac in China said that the property right of the C919 is owned by Comac in China. The team of Comac in China is the core of the development, and the key links such as aircraft design, final assembly, test flight and sales are in the hands of Comac in China.

　　As for foreign companies providing parts or technology, this is a common thing in the global aviation manufacturing industry. Aviation manufacturing giants such as Boeing and Airbus also use foreign products on many key components when developing aircraft.

　　However, for equipment like engines, the C919 chose the LEAP-X1C engine jointly developed by the United States and France, which is the only foreign starting power device selected by the C919. It should be said that the engine is indeed a major constraint in the development of China’s large aircraft, and it can only be sought from people at present. However, I believe that in 10 to 15 years, China will be able to develop its own advanced aero-engine for large aircraft.

　　③ Have a number of scientific and technological innovations.

　　Experts said that the C919 was completely designed and integrated independently, with outstanding technical indicators. It is the persistent innovation of researchers who have sharpened their swords for ten years that has led to the high-tech C919, which integrates many key technologies.

　　However, what did C919 look like when it was approved as one of the 16 major projects in the national medium-and long-term science and technology planning in January 2006? What difficulties may be encountered in the development? Due to the limitation of western aviation powers in technology introduction, China researchers have no idea and can only cross the river by feeling the stones.

　　In November 2008, the C919 project was launched. A large passenger aircraft joint engineering team composed of 468 experts from 47 domestic and foreign units, plus a large passenger aircraft expert consulting group composed of 20 academicians and experts, started from sketches and gradually sorted out the first batch of 14 special technical research projects that need to be started.

　　Among these key technologies, there are several that must be mentioned. For example, the "supercritical airfoil" that makes airplanes more fuel efficient. A large passenger airliner is an out-and-out "oil tiger". In order to reduce fuel consumption, the wing design of C919 uses a supercritical airfoil, which improves the cruise aerodynamic efficiency by more than 20% and reduces drag by about 8%.

　　Another unique innovation is the adoption of the third generation Al-Li alloy materials. It is the first time in China that the world’s advanced third-generation Al-Li alloy materials are widely used in the main structure of C919. Compared with ordinary aluminum alloy, this lightweight metal material with high damage resistance has greater strength and lighter weight under the same strength, which is very important to realize the weight reduction of aircraft structure and greatly improve the service life of aircraft.

　　In addition, as the "brain" of the C919, the avionics system of the aircraft has realized "giving all the work to the network". Compared with the old version of the network, which was widely used before but had limited bandwidth, the new aviation bus communication protocol adopted by C919 not only has high bandwidth but also shares resources, which means that the signals that originally needed to be transmitted through several cables can now be transmitted by one cable. Experts said that this is like we need to run 10 trains from A to B, but we don’t need to build 10 railways. We only need a set of double-track railways and a reliable signal system.

　　According to Wu Guanghui, the chief designer of C919, the developers have planned 102 key technical problems, and many advanced materials have been applied on a large scale in domestic civil aircraft for the first time. The development process of millions of parts and airborne systems is highly parallel. In order to overcome these technical difficulties, 22 provinces and cities, more than 200 enterprises, 36 universities and hundreds of thousands of industrial personnel participated in the development of C919 large passenger aircraft, and 16 material manufacturers and 54 standard parts manufacturers including Baosteel became suppliers or potential suppliers of large passenger aircraft projects.

　　Our reporter Peng Xunwen

　　Zhongxin. com, Wuhan, November 2 (Wang Youzhe, Lin Xinyi, Fu Chengcheng) Recently, Hubei University of Economics launched a running App among freshmen to juniors. According to the regulations, students who have run for 30 times will pass. For each additional time, the effective score will be added with 3 points until 100 points. If the substitute runner is found, it will be treated as cheating and the file will be recorded.

　　Cui Gaoyuan, vice president of the School’s Sports school of economics and management, said that the scores of freshmen and sophomores using App for running and punching cards accounted for 30% of this semester’s sports scores, and juniors can only participate in the physical fitness test if their scores using App for running and punching cards reach the standard of passing or above. Students have at most one exercise record every day, which is related to sports achievements, and the excess part is only recorded but not related to achievements.

　　Cui Gaoyuan said that the purpose of linking the punch card score with the final sports score is to encourage students to get out of the dormitory, strengthen exercise, cultivate students’ healthy concept of loving sports and advocating sports, form good exercise habits and improve their physical fitness.

　　Students can check the map and choose the best route to the distribution point according to the site conditions. Photo by Huang Siqi

　　"I used to exercise very little. Since the school implemented the running APP, everyone is running and unconsciously wants to run two steps." Huang Ziwei, a freshman at the school, said that he insisted on punching cards every day and his running enthusiasm was much stronger than before.

　　It is worth noting that the school has also formulated an effective standard for single exercise. Boys should run for 1 km at a time, and the running pace should be within the range of 3-9min/km. If a girl’s running mileage reaches 0.8 km at a time and her running pace is within the range of 3-9min/km, her performance will be effective. Cui Gaoyuan said that the introduction of this regulation is mainly to ensure the safety of students, and secondly to achieve sports effects.

　　Huang Siqi, a sophomore in the school of finance, said that under this sports standard, you can complete punching as long as you walk faster. However, she also said that this punching APP has a task nature and may affect the quality of sports.

　　In this regard, Cui Plateau said that in the background, every time the APP is used to run and punch in, it is set to "random allocation", in order to reduce or even avoid the phenomenon of running on behalf of others. In addition, the school will also conduct supervision through inspection teams, student reports, and big data comparison analysis. If students are found to have "violation of discipline" such as running on behalf of others, once verified, they will be dealt with as cheating in the exam and recorded. (End)

Conference site

CCTV News:The Ministry of Education held a press conference today (20th) to disclose the details of the reform of the enrollment system for the senior high school entrance examination. According to the "Guiding Opinions on Further Promoting the Reform of the Examination Enrollment System in Senior High Schools" issued by the Ministry of Education recently, it is necessary to further promote the reform of the examination enrollment system in senior high schools (referred to as the reform of the senior high school entrance examination).

What is the reform of the senior high school entrance examination?

The goal of this reform is to gradually establish a high school enrollment model of "junior high school academic level test scores+comprehensive quality evaluation". It is important to change the current practice of simply adding up the scores of some subjects as the only basis for admission in senior high school enrollment, and overcome the score theory.

First, promote the junior high school level examination. In the future, junior high school graduation and senior high school entrance examination will be combined into junior high school academic level examination, so as to realize "multi-purpose in one examination" and reduce the burden of students preparing for exams many times.

●Change the composition of examination subjects

Chinese, mathematics and foreign languages are the basic subjects, and they are unified as admission scoring subjects. Incorporate physical education into the admission scoring subjects, scientifically determine the test scores or other requirements, and guide students to strengthen physical exercise. At the same time, according to the principle of giving consideration to both arts and sciences and moderate burden, the pilot areas will determine other subjects to be included in the "admission scoring subjects" to prevent group partiality. The subjects set in the national curriculum plan are all included in the scope of the academic level examination, but it is not required to include all subjects in the enrollment scoring subjects, so as not to increase the burden on students.

This reform also puts forward that students can be given the right to choose and develop their advantages and specialties on the premise that each course is qualified. Therefore, students will be able to choose other "admission scoring subjects" except Chinese, mathematics, foreign languages and physical education in the academic level examination. However, we can’t just choose liberal arts subjects, and we can’t just choose science subjects. We should give consideration to both arts and sciences. Subjects that have no choice should not only be "studied" and "tested", but also be "qualified".

●Change the content of the exam

Reduce the content of simple memory and mechanical training, focus on examining students’ ability to analyze and solve problems, and enhance students’ innovative spirit and ability.

●Change performance expression

It can be presented in various forms, such as scores and grades. It reiterates the requirement of encouraging qualified areas to implement "grades" to avoid students’ competing for points and excessive competition.

Second, improve students’ comprehensive quality evaluation. The reform clearly requires the pilot areas to take the comprehensive quality evaluation as the basis or reference for high school enrollment, so that the "comprehensive quality evaluation", which used to be in a subordinate and reference position, becomes the protagonist and really plays a role in high school enrollment. As for the evaluation content, it is required to refine and improve the evaluation content and requirements in five aspects: ideological and moral character, academic level, physical and mental health, artistic accomplishment and social practice. The evaluation focuses on reflecting students’ all-round development and personality traits, and paying attention to examining students’ daily behavior norms and outstanding performance. In the evaluation procedure, it is emphasized to make realistic records, publicize and review the factual materials used for enrollment, and establish comprehensive quality evaluation files. In the use of results, whoever uses and evaluates the results should be implemented, and senior high schools should formulate specific use methods according to the school-running characteristics, so that comprehensive quality evaluation can really play a role in enrollment and crack the score-only.

Weifang, Shandong (treating the comprehensive quality evaluation results as a combination with Chinese, mathematics and other subjects), Jiaxing, Zhejiang (converting the comprehensive quality evaluation results into corresponding scores and counting them in the total score, with a perfect score of 20 points), Changsha, Hunan (screening according to the order of academic performance, comprehensive quality evaluation results, policy bonus points and foreign language scores) and other places, although the specific methods are different, they have been included in the enrollment system.

Third, reform the enrollment methods.Significantly reduce and strictly control bonus items. Cancellation of sports, art and other competition bonus items, related specialties and performances are included in the students’ comprehensive quality evaluation files, which will be used as a reference when enrolling students. Further improve the independent enrollment policy, give qualified high school a certain number of independent enrollment places, recruit students with academic expertise and innovative potential, and encourage the development of students’ interests.

When will the reform of senior high school entrance examination begin?

Because the junior high school level examination is generally organized and implemented by the local cities, it is required that the local cities formulate a scientific and standardized comprehensive quality evaluation system, formulate a specific implementation plan for the senior high school entrance examination reform and report it to the provincial education administrative department for the record. The provincial education administrative department shall formulate unified requirements for junior high school academic level examination and comprehensive quality evaluation; Select qualified cities to further expand the comprehensive reform pilot, formulate the implementation opinions of the senior high school entrance examination reform, and report them to the Ministry of Education for the record before the end of August 2017.

The comprehensive reform pilot has been implemented since the first-year junior high school students who entered the school after 2017. The current junior high school students and non-pilot cities still implement the original examination enrollment method unchanged. By the year 2020, a model of high school entrance examination based on academic achievement and comprehensive quality evaluation will be initially formed. (CCTV reporter Zhou Peipei)

The Spring Festival in 2020 is coming, and having a reunion dinner has become the most anticipated moment for many families in a year. Do you prepare your own New Year’s Eve dinner at home or choose to go to a restaurant to enjoy the feast? How to ensure food safety? On January 14th, the reporter followed Hubei Provincial Market Supervision Bureau to Wuchang Dacheng Road Market and Hujin Restaurant for food safety surprise inspection.

Pictured: Market supervision staff are sampling.

In Dacheng Road Market, the staff carefully inspected the meat quality inspection certificate and animal quarantine certificate of each pork stall, and then conducted on-site sampling inspection on all kinds of vegetables in the market to check whether the pesticide residues were qualified. The reporter learned that before 7 o’clock every morning, the market supervision staff in the area will randomly select 10-12 varieties of vegetables in the market for on-site inspection. All the test results will be published on the "vegetable test results publicity" display screen in the market, and the name of the dish, the booth and the test results will be clearly written. And this kind of work will be staged in the major farmers’ markets in Wuhan every day.

Pictured: Dacheng Road Vegetable Test Results Publicity Display Screen

Many families choose to have dinner in the restaurant for the Spring Festival reunion dinner. The reporter followed the market supervision staff to Hujin Restaurant and made a surprise inspection of the implementation of the food safety management system in the restaurant, such as environmental sanitation, equipment and facilities, procurement and storage of raw materials, tableware cleaning and disinfection, and sample retention. According to the inspection results, the hardware facilities of the restaurant are good, the cleanliness of tableware is kept at a good level, and the hygiene management is in place.

Pictured: The staff is carrying out sanitary inspection on tableware.

Hubei Provincial Market Supervision Bureau issued food safety consumption tips for Spring Festival dinners to remind consumers to pay attention to food safety for holiday dinners.

First, we should pay attention to the hygiene of dining places. Consumers are advised to choose a safe and hygienic catering unit to eat, and try to eat in a restaurant with a food business license, good sanitary conditions, complete facilities, high quantitative level (smiling or laughing face) and the implementation of "bright kitchen". The video of the "bright kitchen" catering unit can supervise the post-kitchen processing and production process. Try to avoid going to restaurants that rank and turn over too many tables to eat, and prevent food safety problems in cleaning and disinfection due to super reception.

The second is to pay attention to the safety of dishes and ingredients. Holiday dinners should pay attention to a balanced diet, a combination of meat and vegetables, and reasonable nutrition. The ingredients should be mainly fresh in the season, and more hot foods should be cooked and cooked. High-risk foods such as bright-colored stewed vegetables, cold dishes, raw seafood, green beans and wild mushrooms should be carefully selected. When eating, pay attention to distinguish whether the color and taste of food are abnormal, do not eat foods with abnormal senses, "novelty" and "game", do not overeat, and limit drinking.

The third is to pay attention to personal hygiene habits. Establish a scientific and civilized consumption concept, pay attention to personal hygiene, wash your hands before meals, use sterilized tableware, advocate sharing meals with public chopsticks and spoons, and reduce the risk of cross-contamination at dinner.

Fourth, we should pay attention to safeguarding our own rights and interests. When food safety problems are found, the problem food and consumption bills should be kept well, and complaints should be made to 12315 or the local market supervision department in time. In case of suspected food poisoning, you should seek medical attention in time and keep relevant evidence so that relevant departments can investigate and collect evidence.

The fifth is to ensure the safety of self-hosted family banquets. For collective dinners hosted by rural families, chefs with health certificates and trained qualifications should be selected to host the banquets. Rural dining places should be clean and hygienic, the purchased and used food and raw materials should be of clear source and qualified quality, the food should be cooked thoroughly, and the perishable food and cooked food should be stored in a reasonable way.

Reporter: Liu Qu

Correspondent: Zeng Li Guo Shanshan

Original title: "Do you have a safe reunion dinner? The provincial market supervision bureau raided food safety.

　　[Li Keqiang: shantytown renovation is not only a livelihood project, but also can promote the stable and healthy development of the real estate market] On the 21st, Li Keqiang visited the shanty town of Jingyi Road in Huaiyin District of Jinan. The area has been included in the 2017 Jinan shed reform plan, involving about 4,760 households. The Prime Minister told local officials that the shantytown renovation is not only a livelihood project to make up for historical debts, but also an important way to promote new urbanization and promote the stable and healthy development of the real estate market.

　　[What is this shack with three quilts to cover in winter? The Prime Minister walked in] Li Keqiang walked into the home of Zhang Shirong, a shanty town of Jingshiyi Road in Jinan on the 21st. The old man lived in this low-rise bungalow for 42 years, and kept warm by charcoal stove in winter. Because I have had four or five gas poisoning experiences, I dare not make a fire at night, and I need to cover three quilts in the coldest winter. After listening to the Prime Minister, can I have a look in the back room? He opened the door of the wardrobe, which was stuffed with bedding.

　　[Li Keqiang: shanty towns are "depressions" in the city, so this depression must be raised] Li Keqiang walked into the shanty towns of Jingshiyi Road in the center of Jinan on the 21st. Surrounded by high-rise buildings, the low bungalows here are in ruins. There is neither heating nor water in the room. The Prime Minister said with a dignified expression that shanty towns are "depressions" in the city. We must raise this depression and do our best to let you live in new buildings and lead a new life as soon as possible.

　　[Li Keqiang: This is your promise to the residents of shanty towns. You must do it! 】 Li Keqiang visited 87-year-old Wang Guilan’s home in the shanty town of Jingshiyi Road in Jinan on 21st. She and her wife have lived here for 56 years. The old man took the prime minister’s hand and asked, when can we live in a new home? The Prime Minister told the local leaders that you should specify the time limit. After getting an answer next year, the prime minister said, this is your promise to the residents of shanty towns, and you must do it!

　　Xinhai, China, May 18 (Reporter Li Jiajia) The "520 Love Bill Survey Report" released by zhenai on the 18 th shows that over 7 adults spend less than 2,000 a month on love; 80% of women want the other half to earn more than twice; The economic pressure of men’s marriage and love in first-tier cities is great; Eighty percent of men and women have less than half a year of patience in pursuing love; Shanghai Shenyang has a high-yield "crazy wife"; Love is easy to meet for 3 years; Wuhan has become the city with the most cross-regional marriage and love.

　　This report is an online sample survey of zhenai’s 100 million members, with a total of 6,289 valid samples for data analysis.

　　In the sweet time of love, all expenses are indispensable. According to the survey, 72.64% of single men and women think that it is reasonable to spend 1,000 to 2,000 yuan a month on love, which accounts for a quarter of salary income. As far as consumption is concerned, 32.6% of men think that shopping is the biggest expense in love, and "buy buy shopping" which women love is regarded as the number one enemy of wallets, followed by tourism and entertainment; Women, on the other hand, think that tourism is the biggest expense, followed by shopping and entertainment.

　　People who have talked about marriage have also passed the age of being full of affection and drinking water, and their economic income has always been concerned. The report shows that half of men think that the ideal economic state is equal to that of men and women, and 36.3% of men think that "men earn twice as much as women"; Only 15.2% of women think that the income of men and women is equal in an ideal economic state. More than 50% of women hope that men’s income is twice that of women, and 30.3% of women hope that men’s income is three times or more than that of women.

　　It can be seen that the economic pressure of men on the level of marriage and love is increasing day by day. From the data point of view, men in first-tier central cities are still "far ahead" in the face of economic pressure from marriage and love. Among the cities with high demands from women, Beijing ranks first, followed by Shanghai, Guangzhou, Shenzhen, Chengdu, Wuhan and Xi’ an.

　　In this regard, Zhang Shasha, an emotional expert in zhenai, believes that from the traditional culture of China, men are endowed with the important task of supporting their families. However, in contemporary society, the situation has changed a lot, and women’s ability and value have been greatly improved, even surpassing men in many aspects, so it is unnecessary to rely too much on men economically. At the same time, it is pointed out that it is not worth the loss if you miss the object of good character and sincere treatment with harsh economic requirements.

　　The fast pace of modern society makes all kinds of fast food cultures and quick concepts popular, which also changes people’s emotional concepts and emotional patience, and makes single men and women in reality seize the day emotionally. According to the report, 79% of men and women said that they are willing to spend no more than six months in pursuing their feelings, and 35% of men and 44.4% of women spend less than one month. Only 21% people are willing to spend more than half a year to pursue their favorite object. Interestingly, the post-90s generation accounts for the most of this group, which shows that the post-90s generation is more persistent in the process of pursuing love.

　　80% of men and women’s patience in pursuing love is less than half a year.

　　Once the confession is rejected, 51.09% of men and women will choose to give up directly, 31.86% are still willing to spend a month fighting for opportunities, and only 17.05% will choose to impress each other with persistence for more than half a year.

　　Love is a process of mutual attraction. Zhang Shasha, an emotional expert in zhenai, said that in pursuit, the time is too short, and the other party may not know you well enough. Therefore, if the frequency of contact between the two parties is high (including telephone or network contact), it can be judged whether they can attract each other in more than three months. If the frequency is low, the pursuit period can be extended to six months.

　　Couples are small enemies, and quarrels and bumps are inevitable. The survey found that 54.6% of men said they would compromise immediately when they quarreled, and they were full of tolerance, thoughtfulness and warmth, and 37% of men would compromise in 1-2 days. In-depth investigation shows that men in Shanghai, Shenyang and Beijing admit their mistakes the fastest. For men in these cities, they are likely to become "crazy wives" in the future, and they know how to tolerate and understand best in love. Relatively speaking, men in Chongqing, Suzhou and Guangzhou are more "proud", and it takes 1-2 days to compromise for love. However, it takes more than half of women an average of 1-2 days (50.2%) to compromise.

　　"If you quarrel with your girlfriend, you will win, and you will be single in the end," said Mr. Chen, 27, from Haidian District, Beijing. "Although this is an online joke, I agree that love is not a place to make sense. Boys should have let girls talk slowly and never be angry. It is also good for yourself to admit your mistake in time and marry your girlfriend. "

　　"Giving" is a word that appears frequently in love. The report shows that such behaviors as "spending time with each other", "following each other’s city life", "filial piety to each other’s parents", "giving all the money to each other for safekeeping" and "working hard for each other’s dreams" are all on the list, which are the main giving behaviors of people in love.

　　As for the in-depth study of "following the other city life", it will be found that the more floating people in first-tier cities, the more marriage and love in different places they face. Whether to choose the other city life for love is also a problem that young people have to face. The survey found that 50% of post-80s people are willing to follow each other’s city life for love, which accounts for the most than other age groups. The data shows that Wuhan, Nanjing, Chengdu, Shenzhen and Hangzhou are cities where couples are more willing to move for each other. It can be seen that these cities have the most foreign daughters-in-law and foreign sons-in-law.