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　　　Legal Daily News (Reporter Zhao Li Intern Lin Jingyu Ma Jia) Following the horrible "Blue Whale Game", another game aimed at guiding suicide has entered people’s field of vision — — MOMO challenge(MOMO challenge)

　　It is reported that overseas MOMO games led to the suicide of a 12-year-old Argentine girl, but MOMO in China was "played badly" by netizens. Open Weibo and enter "MOMO Death Game", and QQ chat records between netizens and MOMO are overwhelming. It is understood that MOMO games will find the target audience online, and then release the death task. If the target fails to complete the task, it will use hacking technology to find out the private phone number and home address of the target and harass it. In order to find out, the reporter launched an investigation on this game called MOMO.

　　The spoofed "death game"

　　According to the description of the network police article, MOMO is a suicide game similar to the "blue whale" that once caused a great sensation. It will suddenly jump out of the screen and provoke you to take part in a challenge. At present, a 12-year-old girl in Argentina has died, which the police believe is related to this game.

　　It sounds very scary.

　　And everyone did say that they would not participate, because their first reaction to this game called MOMO was nothing but that the horrible image in MOMO’s game looked so scary that they had no courage to participate after reading it.

　　According to the existing statement, this kind of game is to let others actively add it through the number on WhatsApp, and then it will send back some violent threats, instigate players to do some terrible challenges, and even disclose personal information.

　　Now on the video website, you can see a lot of videos made by video bloggers to contact MOMO. Some people say that MOMO is just a spoof urban legend, while others say that MOMO is a way for dark hackers to retaliate against society. But at present, in the eyes of more and more netizens and even minors, MOMO has become a spoof game or a joke.

　　It’s not hard to find that the chat records thrown out on the Internet are almost teasing and mocking MOMO, and teasing information like "I’ll wait for you at three in the morning" is exposed to the Internet.

　　The reporter privately wrote a few "flirting" netizens about MOMO through Weibo and some Q&A platforms. A netizen said that the chat was a fake MOMO, and the screenshot was stolen from a friend, just for fun. A netizen showed that many MOMO in QQ are now pretended by netizens. MOMO games have been interpreted by many netizens for entertainment, and even made into expression packs to spread.

　　However, in the interview, some netizens reported that they were really targeted by MOMO, saying that they received an application from a QQ friend in the middle of the night. "There are not many words from the other party, and they keep asking me if I accept the death challenge. I just asked the other person what MOMO was, and talked about it, and finally the other person blacked me out. I am an optimistic person in my life, and I have never made suicidal remarks on social media. " According to the contact information of MOMO provided by this netizen, the reporter contacted the person with MOMO as the avatar on QQ, but the other party just sent a "suicide" expression pack, and then asked any information without getting a reply.

　　When looking at related topics, the reporter found that netizens did not take it seriously, nor did they show too much concern about the game. Instead, they spoofed MOMO in various ways.

　　One of the most striking features of MOMO is that it misappropriates a Japanese bird named Link Factory as its avatar on social networks. Its prominent eyeballs and strange expressions make people feel very strange at first glance. However, the reporter noticed that the unrestrained netizens did not seem to be scared by this image, and they used their creativity to beautify the bird with Cosmetic Contact Lenses, lipstick, bow and cat ears, saying that "in fact, she dressed up well, not bad". These netizens joked, "In foreign countries, MOMO forces you to commit suicide. In China, netizens forced MOMO to commit suicide. In foreign countries, someone has called the police to arrest MOMO. In China, MOMO called the police to catch sand sculpture netizens who cheated money.

　　But there are still people who are worried about MOMO.

　　"Minors are immature, MOMO is just a sculpture, and there is no curse. I hope that the majority of teenagers will not try to prevent being fooled." A netizen said in Weibo. The netizen told reporters, "You can pay more attention to your child’s psychological status, whether there are behaviors that hurt yourself, such as self-harm, and whether the mobile phone address book frequently communicates with a strange number, but most of the MOMO that appears on the Internet now is pretended by netizens."

　　Another netizen said that his younger brother had communicated with MOMO in a game group, but because his younger brother’s English was very poor and he couldn’t understand it, he replied while translating, and the other party deleted him because he was too slow. After discovering it, he also asked his younger brother to quit from the group. There are also some netizens who say to people who pretend to be MOMO and flirt with MOMO by being smart, "If you don’t die, you won’t die."

　　Or used by people with ulterior motives.

　　So, is MOMO really scary?

　　The reporter contacted Zhang Kai (a pseudonym) who works in a game media, and he described the ins and outs of MOMO games in detail.

　　"To tell you the truth, I feel very surprised that MOMO can have such a big movement. Previous ‘ Blue whale incident ’ It is a real bad game that really happened, but MOMO is different. " Zhang Kai said that he noticed that MOMO was played on August 2nd this year. At that time, he saw many domestic media and news from the media, but the basic content was the same. He characterized MOMO as a death challenge game similar to "Blue Whale". My intuition made me feel strange, and then we started an analysis.

　　The prototype of MOMO is the "catching bird" in China and Japanese ancient legends. This kind of ghost is the incarnation of a dead pregnant woman, who takes off her feathers to become an adult and puts on her feathers to become a bird, especially to harm children. This is really commensurate with the background of instigating children to commit suicide.

　　Zhang Kai and others compared the game forms of Blue Whale and MOMO, and found that Blue Whale played 50 things in 50 days, while MOMO only called MOMO at 3: 00 in the morning. "Then what? The scariest thing that will happen next is whether the phone bill will be spent. Obviously, this lacks a lot of things. We think it is very strange and we will continue to push forward step by step. " Zhang Kai and others called MOMO at three o’clock in the morning and found that "nothing happened, basically it was not connected". The whole incident was in distress, probably because there was some information gap between China and foreign countries. "According to our investigation, MOMO games got angry on YouTube on July 11th, but we got really angry here without warning until August 15th. The information gap mainly comes from the content on the external network and the self-media in China, and there is some gap, or lag. In fact, MOMO is not terrible at all, because it is just a statue. If it is to be said that it is terrible, it must be that netizens have terrible ability to spread rumors, and it is very bad to listen to the wind and rain. "

　　"Later, a few bloggers on YouTube used special effects to make some scary videos, which were misrepresented and turned into horror games." Zhang Kai gave an example to the reporter, "The video that is widely circulated on the Internet, the content producer made the virtual image of MOMO by using special effects, so he could get through the phone, MOMO would even chat with him, and even instigate him to commit suicide, but it was a prank he directed and acted, because it was the video column ‘ Call at three in the morning ’ A video of the series, he himself also commented under the video that ‘ How many people think this is true, wake up ’ " .

　　Regarding the fact that some netizens said that MOMO on QQ can get the real information of the other party, Zhang Kai sent a screenshot of QQ chat records with similar situation to the reporter, and said to the reporter: "Except for some hackers, it is not excluded that some people in China are bored to pretend to be MOMO, directing and playing pranks for everyone to have fun."

　　"I can only say that MOMO itself does not exist. If, I mean, if, under the guise of MOMO, criminals try to trick children into doing dangerous things, it has nothing to do with MOMO. In fact, MOMO has been completely entertained in China now, and everyone has not taken it seriously. Perhaps after experiencing the blue whale game, everyone really became rational, but they should also be rational, not too entertaining, so that some lawless elements can take advantage of it. " Zhang Kai said.

　　For MOMO games, Liu Min, who is engaged in psychological counseling and rehabilitation in Beijing, told reporters that she also noticed the spoof about related games on the Internet. "MOMO is deified to some extent. We should care more about those who play this game with the idea of killing themselves. However, it is not difficult to imagine that those who have been found out a lot of personal information and committed suicide by self-mutilation may be people who can only live in the internet but are not gregarious in reality. They may have lost hope for life and may have poor mental health. They will kill themselves, just looking for a reason. This is what needs to be vigilant. "

　　In Liu Min’s view, MOMO game and Blue Whale game are not far apart in essence. In fact, the objects of these games are those who have lost hope in life, give them a dose of catalyst, and at the same time threaten their privacy and the safety of their loved ones, pushing them to death. "A person who really doesn’t want to die will call the police immediately when he hears someone say that he wants to hurt himself and his loved ones. There are also some fancy pictures insulting MOMO on the Internet, which is the simplest example, but those negative thoughts are still worthy of vigilance and should not be over-entertained. In particular, it is necessary to determine whether the game is very popular among minors, because the minds of minors are still immature and fragile. "

　　Finally, Liu Min gave four words of advice: Don’t spread it.

Xinhua News Agency, Geneva, October 31 (Reporter Shan Lei) On October 31, FIFA announced that Saudi Arabian Football Association was the only football association to submit an application for hosting the 2034 Football World Cup before the deadline.

FIFA confirmed that it has received an application from Saudi Arabia to host the 2034 World Cup, and Saudi Arabia is the only country that has expressed its interest in hosting the 2034 World Cup.

Previously, FIFA had announced that the only application for hosting the 2030 World Cup was jointly submitted by the Football Associations of Morocco, Portugal and Spain. At present, these three countries have confirmed their willingness to bid. As the centenary celebration of the World Cup will be held in 2030, FIFA plans to hold a World Cup in Uruguay, Argentina and Paraguay, and these three countries have also confirmed their willingness to host the World Cup.

Like Morocco, Portugal and Spain, Saudi Arabia still needs to pass the FIFA audit. If these bidding countries can meet the requirements of FIFA and go through the whole bidding process, then FIFA will determine its right to host at the FIFA General Assembly at the end of 2024.

Photo: Li Ming

　　Guangming. com May 5 th (Reporter Zhan Wei)This afternoon, the domestic large passenger plane C919 will make its first flight at Shanghai Pudong International Airport. From 1970, when the project was initiated to develop "Yun 10", to 2007, it was decided to carry out the reform of aviation industry system, and the project was initiated to develop C919. The civil aviation industry in China experienced a difficult and bumpy development course. The moment of the first flight of C919 bears the struggles and dreams of several generations of China civil aircraft people. Let us have a more comprehensive understanding of C919.

　　On May 4th, in the hangar of Zhuqiao Base of China Commercial Aircraft Corporation Flight Test Center, the staff inspected and maintained the domestic large passenger plane C919. Xinhua news agency　　

　　Why is it named C919?

　　According to Comac China, the full name of "C919" is "COMAC919".

　　Among them, "COMAC" is the abbreviation of the English name of Commercial Aircraft Corporation of CHINA Ltd, which developed C919. The "C" in the abbreviation is the first letter of "COMAC" and the first letter of China’s English name "China".

　　The first 9 means "everlasting", and the last two 19 means that the maximum capacity of C919 passenger plane is 190 passengers.

　　Previously, the internationally renowned aircraft manufacturers were Air Bus and Boeing, and from A to B to C, they just lined up.

　　What kind of research and development process has C919 experienced?

　　According to official website of China Commercial Aircraft Corporation, C919 is a large jet civil aircraft developed by China in accordance with international civil aviation regulations and with independent intellectual property rights, with 158-174 seats and a range of 4,075-5,555 kilometers.

　　It took 10 years from 2007, when the major scientific and technological special project of large aircraft development was formally approved, to 2015, when the first aircraft of C919 was assembled and rolled off the assembly line in China Commercial Aircraft Assembly and Manufacturing Center, and today, the domestic large aircraft will soon fly from blueprint to flying in the blue sky for the first time.

　　During this period, researchers have planned 102 key technical problems for advanced pneumatic layout, structural materials and airborne systems. In preparation for the first flight, the C919 has completed 118 test projects and experienced 21 taxiing tests including low, medium and high taxiing, and passed the expert technical review in March 2017 and the release review in April.

　　Why is the first flight important?

　　The first flight of an airplane refers to the first flight of a newly manufactured airplane from the ground. Every plane has its first flight, but the first flight of a new model has its special significance. It is not only an important link in a series of work chains, such as changing ideas into drawings, drawings into objects, and objects can fly, but also an important milestone in the turning point of new models from static to moving and the birth of new models.

　　According to the relevant person in charge of Comac, as long as the plane begins to taxi and leave the ground during the first flight, the most basic system functions will be preliminarily assessed. The test pilot will comment on the aircraft’s handling stability, take-off and landing performance, power plant and driving equipment for the first time. Generally, the first flight time of light aircraft does not exceed 30 to 40 minutes, and that of large aircraft is 1 to 2 hours. Generally, the first flight chooses a good weather, with visibility not less than 5 to 7km, and no low clouds and crosswinds. The flight weight of the first flight plane should be reduced as much as possible, so as to minimize the take-off speed from the ground and shorten the take-off taxi distance, thus improving driving conditions.

　　How to fly on the first flight?

　　The maximum altitude of the first flight of C919 is 10,000 feet, the maximum speed is 170 knots, and there are 15 test points. The whole process is divided into five stages, namely, ground inspection stage, climbing stage, level flight stage, simulated approach, landing and go-around stage and landing stage. Traditionally, the C919 did not retract the landing gear during the first flight, and kept the flaps down.

　　In addition, when the C919 makes its first flight, a second plane will accompany it. The task of companion flight is to observe the first flight plane in real time in the air, record flight data, take photos and videos, and make every effort to ensure the safety of the plane during its first flight. In case of any problems, the crew of the accompanying plane will immediately warn the crew of the first flight, report to the ground control personnel and guide the first flight to land safely. In addition, the accompanying aircraft will also monitor the air environment of the first flight to ensure that no other aircraft will break into the flight route of the first flight and put an end to any hidden dangers of stealing secrets.

　　How about the localization of C919?

　　Zhou Guirong, deputy chief designer of C919 large passenger aircraft, said that at present, the overall localization rate of C919 aircraft can reach more than 50%, including domestic enterprises and joint ventures at home and abroad. The safety requirements of aviation products are very high. The development of the whole localization, whether at home or abroad, is in accordance with the same set of international standards and methods, and the trial is also in strict accordance with international standards and norms.

　　China Commercial Aircraft Corporation insists on "main manufacturer — Supplier "development mode, maximize the gathering and utilization of domestic and foreign resources, and build a" life community "of the civil aircraft industry. There are 22 provinces and cities, more than 200 enterprises and 36 colleges and universities involved in the development of C919 large passenger aircraft. Sixteen material manufacturers and 54 standard parts manufacturers including Baosteel have become suppliers or potential suppliers of large passenger aircraft projects. China Comac also signed strategic cooperation agreements with six central enterprises, including aviation industry corporation of china, and established strategic cooperation relations with seven major domestic banks.

　　In the development of C919 large passenger plane, researchers have planned 102 key technical problems, including integrated design of aircraft engine, control law design of fly-by-wire flight control system, active control technology, etc., aiming at advanced aerodynamic layout, structural materials and airborne system.

　　Take most of the front fuselage of C919 as an example, which includes the front passenger cabin, the front cargo cabin and the recirculation fan cabin, and contains more than 1,600 parts, involving nearly 2,000 tooling. This section adopts the third generation aluminum alloy — — Al-Li alloy material, which is the first time in domestic civil aircraft application. Al-Li alloy material is considered as the most ideal material for aerospace at present. China Commercial Aircraft Corporation and AVIC Hongdu Aviation, a joint supplier, have completed 20 batches of material performance data tests under stable process conditions through the tests of 2,500 test pieces in recent three years. Around the establishment of material fatigue rating (DFR) data system, DFR fatigue tests of typical structural details in different processing and manufacturing States were carried out, with more than 3,000 test pieces. The processing technology of Al-Li alloy structure, such as chemical milling, machining, hole-making, hot-pressing subsidence, mirror milling and heat table treatment, has been fully verified. Through tackling key problems, the model material specification system and performance data system for design are gradually established.

　　How did the C919 market react?

　　Focusing on the most mainstream air transport market, C919 is a trunk aircraft developed in full compliance with international mainstream airworthiness standards and international mainstream market operation standards. At present, C919 large passenger aircraft has 23 domestic and foreign customers, including China International Airlines, with a total order of 570 aircraft, including international customers such as GECAS.

　　What is the significance of C919 to China?

　　Large aircraft is a high integration of modern high technology and is called "the jewel in the industrial crown". C919 means that China’s civil aviation will no longer rely on foreign imports, and China’s aircraft manufacturing has truly embarked on a road of independent development.

　　Driven by the C919 large passenger aircraft project, a technological innovation system of civil aircraft has been formed, which is based on China Commercial Aircraft Corporation, market-oriented and combined with Industry-University-Research. China Commercial Aircraft Corporation (Comac) has built a technical responsibility system around the realization process of civil aircraft products and the technical requirements of full-life cycle service, and planned to promote the technical system construction with standards and specifications as the main carrier. Through scientific research and innovation research, model technology research and other ways, it has continuously formed new civil aircraft technical achievements and supplemented and improved the civil aircraft technical system.

　　Millions of fine parts, covering high-end manufacturing of almost all industrial categories — — Domestic large aircraft soaring in the blue sky will undoubtedly drive China’s manufacturing industry to the "smile curve".

　　From the upstream, the development of large passenger aircraft can drive the group breakthrough of key technologies in new materials, modern manufacturing, advanced power, electronic information, automatic control, computers and other fields, and can promote the development of many high-tech industries, with a technology diffusion rate as high as 60%. The technological upgrading of its industry will inevitably require great progress in many basic disciplines, including fluid mechanics, solid mechanics, computational mathematics, thermophysics, chemistry, information science, environmental science and so on. From the downstream, the commercial operation of large civil aircraft has a great impact on civil aviation transportation, aviation maintenance, aviation finance, tourism, logistics and other industries.

　　For China, the breakthrough of large-scale aircraft technology will not only promote the development of a number of new industries, but also force the upgrading of China’s industrial standards by continuously expanding the industrial chain and introducing airworthiness certification in China, thus promoting the overall improvement of China’s industrial manufacturing capacity and level. Some experts said that in the 21st century, only a breakthrough in high-end large-scale equipment manufacturing such as large aircraft can support the foundation of China as an industrial power. At the same time, it also contributes to the transformation of China from a "manufacturing power" to a "manufacturing power".

　　C919 memorabilia:

　　In 2007

　　On February 26th, the 170th executive meeting was held in the State Council, and the Report on Demonstration of Large Aircraft Scheme was adopted in principle, and the major scientific and technological projects for large aircraft development were formally approved in principle.

　　On August 30th, the Political Bureau of the Central Committee held the 192nd Standing Committee, listened to and agreed to the Report of the Leading Group for Major Special Projects of Large Aircraft in the State Council, and decided to set up a preparatory group for large passenger aircraft projects.

　　the year of 2008

　　On May 11th, China Commercial Aircraft Corporation was established on the Huangpu River.

　　On July 3rd, China Commercial Aircraft Corporation held a demonstration mobilization meeting for large passenger aircraft project in Shanghai.

　　In 2009

　　On January 6th, China Commercial Aircraft Corporation released the first single-channel conventional layout 150-seat large passenger aircraft model code "COMAC919", referred to as "C919".

　　On September 8th, the Asia International Aviation Exhibition and Forum opened in Hong Kong, and the C919 large passenger aircraft model was exhibited for the first time.

　　On December 16th, the basic overall technical scheme of C919 large passenger plane passed the expert review organized by the Ministry of Industry and Information Technology.

　　On December 21st, China Commercial Aircraft Corporation and CFM Company formally signed a letter of intent for strategic cooperation on the power plant of C919 large passenger aircraft, and selected the LEAP-1C engine developed by CFM Company as the only foreign startup power plant for C919 large passenger aircraft.

　　On December 25th, the main structure of C919 large passenger aircraft nose engineering prototype was officially delivered in Shanghai.

　　2010 years

　　On November 15th, a 1:1 demonstration prototype of C919 large passenger plane was exhibited for the first time at Zhuhai Air Show, and 100 start-up orders were obtained.

　　On December 24th, the Civil Aviation Administration of China officially accepted the application of C919 large passenger plane in type certificate.

　　In 2011

　　On April 18th, the first meeting of the Model Qualification Approval Committee of C919 large passenger aircraft was held in Shanghai, and the development of C919 aircraft entered the formal airworthiness review stage.

　　On December 9th, the C919 large passenger aircraft project passed the national preliminary design review and moved to the detailed design stage.

　　On December 19th, the first part of the C919 large passenger aircraft project — — The beam of the front boarding gate was started in Chengdu, and the manufacturing of the fuselage was fully rolled out.

　　In 2012

　　On July 31st, the Special Certification Plan for C919 Aircraft (PSCP) was signed in Shanghai.

　　On December 4th, the static fatigue test project of strength research of composite rear fuselage section, one of the seven components of C919 aircraft, was completed.

　　On December 13th, the Design & Research Department of Sexuality and Product Support of China COMAC received the model data review form fed back by the reviewer, and the reviewer officially approved the CP status of the C919 Aircraft System Safety Review Plan in the first stage.

　　On December 29th, China Commercial Aircraft Flight Test Center organized a review meeting on the test modification scheme of 101 aircraft riveting area of C919 aircraft and a seminar on the construction scheme of C919 aircraft test system.

　　In 2013

　　From January 17th to 18th, the composite structural design evaluation meeting of C919 large passenger plane and the key design evaluation meeting of central wing structure were held in Shanghai. At the meeting, it was finally evaluated that the composite structural design of C919 large passenger aircraft can continue the next stage of work, and the key design of the central wing structure of C919 large passenger aircraft passed the review.

　　On January 19th, the static test of the IPS suspension section of C919 aircraft was successfully completed 4.2g

　　On November 28th, the FTB (Flight Test Platform) hanging test piece of C919 aircraft rolled off the assembly line in Shen Fei.

　　On December 30th, the C919 aircraft iron bird test-bed was officially put into use in China Commercial Aircraft Shangfei Hospital, and the system verification of the C919 project was officially started.

　　On December 31st, the first aircraft nose of C919 large passenger aircraft project was rolled off the assembly line of AVIC Chengfei civil aircraft.

　　In 2014

　　On May 15th, the front fuselage section of the first aircraft of C919 rolled off the assembly line in Hongdu, AVIC.

　　In July, the central wing of the first aircraft of C919 completed the final assembly in AVIC Xifei.

　　On July 23rd, the assembly of the flat tail parts of the first aircraft of C919 was officially started in Pudong base of the final assembly manufacturing center of China Commercial Aircraft Corporation.

　　On August 21st, the middle and rear fuselage section of the first aircraft of C919 rolled off the assembly line in Hongdu large parts factory of AVIC.

　　On August 29th, the mid-fuselage/center wing and aileron section of C919 aircraft passed the airworthiness inspection in AVIC Xifei and reached the delivery status.

　　In September, C919 aircraft tire explosion hazard test was successfully completed.

　　At 9: 19 on September 19th, the first aircraft of C919 began to dock at the newly-built assembly manufacturing center of Comac in China. This marks an important milestone in the development of the C919 large passenger aircraft project.

　　On September 23rd, the prototype and test platform of C919 aircraft communication navigation monitoring system (CNS system) were delivered in Shanghai.

　　On November 24th, the first wing of C919 aircraft arrived at Pudong base of China Commercial Aircraft Assembly Manufacturing Center.

　　On October 30th, the front section of the rear fuselage of the first aircraft of C919 was delivered at AVIC Shenfei Civil Aircraft.

　　In 2015

　　On February 6 -8, the Ministry of Industry and Information Technology organized a detailed design review meeting of the C919 large passenger aircraft project in Shanghai, and the expert review committee unanimously agreed that the C919 project passed the national detailed design review.

　　On February 11th, the rear fuselage of the first aircraft of C919 was manufactured by China Aerospace Science and Technology Third Academy Aerospace Haiying (Zhenjiang) Special Materials Co., Ltd., passed the airworthiness review and was officially delivered to China Commercial Aircraft Corporation.

　　In February, the C919 aircraft avionics comprehensive test-bed was delivered to China Commercial Aircraft by Ang Avionics and officially put into trial.

　　On March 6th, the Ministry of Industry and Information Technology held a review meeting on the transition of the C919 aircraft to the full-scale trial production stage in Beijing, and the C919 large passenger aircraft project was transferred from the detailed design stage to the full-scale trial production stage.

　　On April 18th, the first cabin door of C919 aircraft arrived at Pudong base of China Commercial Aircraft Assembly Manufacturing Center.

　　On July 22nd, Comac China and CFM International held a ceremony to celebrate the delivery of the first CFM LEAP-1C engine.

　　On September 4th, 102 front fuselage and mid-rear fuselage of C919 project manufactured by AVIC Hongdu successfully passed the airworthiness manufacturing compliance inspection of China Civil Aviation Jiangxi Supervision Bureau, and successfully completed the signing.

　　On November 2nd, the first aircraft of C919 rolled off the assembly line in China Commercial Aircraft Assembly and Manufacturing Center.

　　the year of 2016

　　On April 11th, the static test of C919 large passenger plane was officially launched.

　　In June, the construction of C919 intelligent assembly line with horizontal tail was listed in the smart manufacturing project to be selected by the Ministry of Industry and Information Technology.

　　In November, China Eastern Airlines became the first user of C919 aircraft in the world.

　　On December 25th, the first aircraft of C919 was delivered to the flight test center.

　　the year 2017

　　On April 18th, C919 large passenger plane passed the first flight release evaluation.

　　On April 23rd, C919 large passenger plane completed the high-speed taxiing and front wheel lifting test.

　　Plan, May 5, the first flight.

　　(Comprehensive Guangming Daily, Xinhua News Agency, China News Service, Beijing Youth Daily)