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充分条件是前推后还是
更新时间: 2021-05-25 19:56:33  

1、充分条件是前推后。

2、如果A能推出B,那么A就是B的充分条件。其中A为B的子集,即属于A的一定属于B,而属于B的不一定属于A,具体的说若存在元素属于B的不属于A,则A为B的真子集;若属于B的也属于A,则A与B相等。

关键词: 充分 条件 推后 还是

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