设U={0,1,2,3},A={x∈U|x2+mx=0},若CUA={1,2}, 发布时间:2017-04-03 18:26 │ 来源:www.tikuol.com 题型:解答题 问题: 设U={0,1,2,3},A={x∈U|x2+mx=0},若CUA={1,2},则实数m=______