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____ 设A、B为两个事件,则A∪B =( )

A、A∪B

B、A∪B

C、AB

D、AI B

时间：2021-09-02 12:08 关键词：青书学堂河北建筑工程学院电气工程及其自动化概率论与数理统计

答案解析

D

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