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If it is high, throw away the part that was sucked low the day before, and wait for the opportunity to step back and suck in at a low level.Preface:Science and technology-new quality generation, new energy, military industry, special evaluation, big finance, medicine and medical care, should be good.

It is expected to open low and go high, bottom out and rebound, and the bulls will stand firm at 3500 points.Strong support around 3400

Market index:Science and technology-new quality generation, new energy, military industry, special evaluation, big finance, medicine and medical care, should be good.So as long as the stock price in your hand is not lower than the third line, don't sell it. Basically, after a bull market, you can never sell it. If you can't resist the temptation, buy and sell. That's hard to say.