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Resume chat:Strong support level around 3380The support level is around 2250.

Science and technology-new quality generation, new energy, military industry, special evaluation, big finance, medicine and medical care, should be good.The pressure level is around 2300;

Near the strong support level 2230,I saw the news that a high-rise building caught fire this afternoon. This is a warning to everyone. How can this happen? Don't they all have anti-leakage alarm devices now? You can check the listed companies that do testing instruments, and their demand will also rise in the future. Market share is also increasing. The performance will be guaranteed.The pressure level is around 2300;