已知集合A={x|-2≤x≤2},集合B={x|0<x<3},则A∪B=() A 发布时间:2017-04-02 02:16 │ 来源:www.tikuol.com 题型:选择题 问题: 已知集合A={x|-2≤x≤2},集合B={x|0<x<3},则A∪B=( )A.{x|-2≤x≤3}B.{x|-2≤x<3}C.{x|0≤x<2}D.{x|0<x≤2}
题型:选择题 Professor White contributed a lot to our community,()A.teaching, writing, and lecturing B.teaching, writing, and a lecturer C.a teacher, a writer, and lecturing D.teaching, lecturing, and a writer 查看答案