1.条件P:x∈A∪B.则P是 ( ) A.xA或xB B.xA且xB C.x∈A∩B D.xA或x∈B 查看更多

 

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条件P:x∈A∪B,则P是                                       

A.xA或xB                                  B.xA且xB

C.x∈A∩B                                      D.xA或x∈B

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条件P:x∈A∪B,则P是                                    

A.xA或xB                                  B.xA且xB

C.x∈A∩B                                      D.xA或x∈B

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若条件P:x∈A∪B,则

[  ]

A.xA或xB

B.xA且xB

C.x∈A∩B

D.xA或x∈B

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