已知向量,则的充要条件是_刷题宝

题干

已知向量

,则

的充要条件是（　　）

A：

B：

C：

D：

上一题下一题 0.0难度选择题更新时间:2019-12-11 09:10:31

答案(点此获取答案解析）

D

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