问题 选择题

设集合U={0,l,2,3,4,5,6},M={l,3,5},N={2,4,6},则(∁UM)∪(∁UN)=(  )

A.{0}

B.{1,3,5}

C.{2,4,6}

D.{0,1,2,3,4,5,6}

答案

U={0,l,2,3,4,5,6},M={l,3,5},N={2,4,6},

∴∁UM={0,2,4,6},∁UN={l,3,5},

(∁UM)∪(∁UN)={0,1,2,3,4,5,6}

故选D

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