1.全集U={1,2,3,4,5,6,7,8}.A={3,4,5}.B={1,3,6}.那么C={2,7,8}是 ( ) A. B. C. D. 查看更多

 

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设全集U={1,2,3,4,5,6,7,8},集合S={1,3,5},T={3,6},则(S∪T)等于(    )

A.                 B.{2,4,7,8}               C.{1,3,5,6}               D.{2,4,6,8}

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已知全集U={1,2,3,4,5,6,7,8},M={1,3,5,7},N={5,6,7},则Cu(M∪N)=     (    )

A.{5,7}             B.{2,4}         C.{2,4,8}      D.{1,3,5,6,7}

 

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已知全集U={1,2,3,4,5,6,7,8},M={1,3,5,7},N={5,6,7},则Cu(M∪N)= (   )
A.{5,7}B.{2,4}C.{2,4,8}D.{1,3,5,6,7}

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设全集U = {1,2,3,4,5,6,7,8},集合S = {1,3,5},T = {3,6},则等于

A.Φ      B.{2,4,7,8}  C.{1,3,5,6}  D.{2,4,6,8}

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设全集U = {1,2,3,4,5,6,7,8},集合S = {1,3,5},T = {3,6},则等于

A.Φ      B.{2,4,7,8}  C.{1,3,5,6}  D.{2,4,6,8}

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