“”是“”的(   ) A.充分而不必要条件                

”是“”的(   )

A.充分而不必要条件                      B.必要而不充分条件

C.充分必要条件                          D.既不充分也不必要条件

答案

A


解析:

对于“”;反之不一定成立,因此“”是“”的充分而不必要条件.

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