题干

命题p:(x-1)(y-2)=0;命题q:(x-1)2+(y-2)2=0,则命题p是命题q的(  )

A:充分不必要条件

B:必要不充分条件

C:充要条件

D:非充分非必要条件

上一题 下一题 0.0难度 选择题 更新时间:2013-03-02 09:47:57

答案(点此获取答案解析)

B

同类题1

The _________ on his face was kind of strange, when I told him the news.