已知,为不重合的两个平面,直线,那么“”是“”的(    ) A.

已知为不重合的两个平面,直线,那么“”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   显然选A

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