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I. Important news affecting the marketFourth, hot spots of investment public opinion on Wednesday1. Individual pension funds will be expanded to broad-based index products.

The second reason is that there are 25 stocks that have fallen more than 9% today, and the main funds have also sold a net of 28.2 billion. Some sectors and several stock markets have fallen back at a high level. In the past two days, the number of high-level reminders of risks and the lifting of the ban has also increased, which also has a certain pressure on today's disk.19. 12. Lianban Yiming Food: On December 11th, the three partnerships sold a total of 200,000 shares of the company.20. Construction industry: The current P/E ratio and P/B ratio of the company are quite different from those of the same industry.

4. Jingchen Co., Ltd.: The machine vision intelligent chip under research is in the trial production stage.2. Guokewei: AI edge computing chip can be used in robot and other fields.15. Qianfang Technology: Its subsidiary, Yushi Technology, was listed in the entity list by the US Department of Commerce.