设集合M={4,5,6,8},集合N={3,5,7,8},那么M∪N=()A.{3,4,5,6,7,8}B.{5,8}C.{3,5,7,8}D.M={4,5,6,8}-数学

题目简介

设集合M={4,5,6,8},集合N={3,5,7,8},那么M∪N=()A.{3,4,5,6,7,8}B.{5,8}C.{3,5,7,8}D.M={4,5,6,8}-数学

题目详情

设集合M={4,5,6,8},集合N={3,5,7,8},那么M∪N=(  )
A.{3,4,5,6,7,8}B.{5,8}
C.{3,5,7,8}D.M={4,5,6,8}
题型:单选题难度:中档来源:四川

答案

由题意,找M与N的所有元素为3,4,5,6,7,8,
则M∪N={3,4,5,6,7,8}.
故选A.

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