1.已知全集U={1,2,3,4,5,6}.A={1,2,3,4}.B={3,4,5,6}.那么CU {1,2,5,6} Φ 查看更多

 

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已知全集U={1,2,3,4,5,6},A={1,2,3,4},B={3,4,5,6},那么U(A∩B)=(       )

A.{3,4}                            B.{1,2,5,6}

C.{1,2,3,4,5,6}                      D.

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已知全集U={1,2,3,4,5,6},A={1,2,3,4},B={3,4,5,6},那么CU(A∩B)=(      )

A. {3,4}    B. {1,2,5,6}    C. {1,2,3,4,5,6}     D. Φ

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已知全集U={1,2,3,4,5,6},A={1,2,3,4},B={3,4,5,6},那么CU(A∩B)=(      )

(A){3,4}  (B){1,2,5,6}   (C){1,2,3,4,5,6}    (D)Φ

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已知全集U={1,2,3, 4,5,6},集合P={1,2,3,4},Q={3,4,5,6},则P

A.{1,2}        B.{3,4}        C.         D.1

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 已知全集U={1,2,3,4,5,6},集合P={1,2,3,4},Q={2,3,4,6},则中的元素个数为                                                        (    )

A.0                  B.1                C.3               D.5

 

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