2.已知命题p: xR.cosx≤1.则 ( ) A. B. x∈R.cos x≥1 C. D. x∈R.cos x>1 查看更多

 

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已知命题p: xR,cosx≤1,则                                                                          

A.                              B. x∈R,cos x≥1

C.                          D. x∈R,cos x>1

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