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Normal fluctuation range, 3448-3490Written on the evening of Thursday, December 12th.2. Tomorrow, Friday the 13th, watch the trend.

1. The resistance level of the daily line tomorrow is 3490.Tomorrow, Friday, December 13th, the weekly line will be closed.3. See if this narrow range will be broken tomorrow. If it is broken, it will run in the direction of breaking.

Today, the Shanghai Composite Index closed at 3461,Normal fluctuation range, 3448-3490In addition, there are still 13 trading days, and the weekly, monthly, seasonal and annual lines will be closed.