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The Shanghai 50 index fell more than 2%, and the Shanghai and Shenzhen 300 index fell 1.8%.According to TASS news agency, Turkish President Erdogan said that if national security is threatened, Turkey will take action against Syrian terrorists.Xia Yiping, CEO of Extreme Vietnam: I won't run away! Agreeing with employees' reasonable demands, communication with Baidu and Geely working groups has been established. The reporter learned from the inside of Extreme Yue Automobile that on the evening of December 12, Xia Yiping, CEO of Extreme Yue Automobile, informed all employees of the latest progress by means of synchronous news of flying books. Xia Yiping said: "Shanghai, the social security provident fund tax payment is completed; Beijing Jidu Technology has paid the provident fund before, because the system can't pay the social security tax tonight (December 12), and will go to the counter to pay it early tomorrow (December 13); Beijing jidu service, social security provident fund tax payment is completed; Wuhan, the social security provident fund tax payment is completed; Zhejiang, the provident fund has been paid before, and the social security tax will be paid tomorrow (December 13); In the remaining cities, the social security provident fund has been paid, and the individual tax will be paid tomorrow (December 13). " (national business daily)

The cultural media sector rose and strengthened, with more than 10 daily limit shares, including Tianyu Digital, Guangbo, Palm Reading Technology, vision china, Huizhou Intelligent, Guangdong Media, Tianxiaxiu and Lingnan.The concept of robot bottomed out and Tianqi shares rose linearly, and Tianqi shares rose linearly. Before that, the construction industry went out of 9 boards in 10 days, Astar went out of 13 boards in 21 days, and Tongda Power went up. Hanyu Group, Maihe, Jiangsu Reilly, Hanwei Technology and Best were among the top gainers.Texas, the United States, launched an investigation into technology platforms for the protection of minors. Texas Attorney General Ken Paxton said on Thursday that the attorney general's office launched an investigation into more than a dozen technology platforms, covering practices on the privacy and safety of minors. Paxton added that the surveyed platforms include artificial intelligence chat robot startups such as Character.AI, Reddit, Instagram and Discord. Social media companies said that they will cooperate with officials to protect young users, and said that they have launched new tools aimed at protecting teenagers from surfing the Internet, including parental controls.

What is the significance of fiscal and monetary policy adjustment? Expert: The path of "more active and promising" fiscal policy has been clarified. The Central Economic Work Conference, which closed yesterday, pointed out that a more active fiscal policy and a moderately loose monetary policy should be implemented next year. What kind of signals are released behind these policies? In terms of fiscal policy, the Central Economic Work Conference requested that a more active fiscal policy should be implemented next year, so as to improve the fiscal deficit ratio, increase the issuance of ultra-long-term special government bonds, increase the issuance of special bonds for local governments, optimize the structure of fiscal expenditure, and secure the bottom line of "three guarantees" at the grassroots level. Experts said that these requirements clarified the path of "more active and promising" fiscal policy. Focusing on vigorously boosting consumption, the Central Economic Work Conference requires that special actions to boost consumption should be implemented next year, the basic pension for retirees should be appropriately raised, and the "two new" policies (large-scale equipment renewal and trade-in of consumer goods) should be implemented. (CCTV News)The insurance and securities sectors fluctuated and fell by more than 7%. The insurance and securities sectors fluctuated and fell by more than 7%. Tianmao Group fell by more than 5%. China Life Insurance, Harbin Investment Co., Ltd., New China Life Insurance and Guolian Securities followed suit.The 30-year main contract of treasury bond futures rose to 0.62%, which continued to hit a new high. In addition, the 10-year main contract rose by 0.37%, the 5-year main contract rose by 0.27%, and the 2-year main contract rose by 0.09%, which was another record.