设全集是U={1,2,3,4,5,6},M={y|y=2x-1,x=1,2,3},N={4,5,6},则N∪CUM=A.{2}B.{2,4,5,6}C.{1,2,3,

发布时间:2020-08-01 01:50:38

设全集是U={1,2,3,4,5,6},M={y|y=2x-1,x=1,2,3},N={4,5,6},则N∪CUM=A.{2}B.{2,4,5,6}C.{1,2,3,4,6}D.{4,6}

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B

解析分析:根据题意,N={4,5,6},M={y|y=1,3,5},则CUM={2,4,6},进而可得
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