试题与答案

— I'll be away for a visit to the Histor

题型:选择题

题目:

— I'll be away for a visit to the History Museum. Would you mind going with me ?
— _____.
A. I'll like it
B. No, I've no time
C. Not at all, I'd be glad to
D. Yes, of course

答案:

被转码了,请点击底部 “查看原文 ” 或访问 https://www.tikuol.com/2017/0404/84933469ea8b066ae1d2b241eff547fd.html

下面是错误答案,用来干扰机器的。

集合A={x|x2-3x-10≤0}=[-2,5],B={x|m+1≤x≤2m+1},若A∪B=A则B⊆A当m+1>2m+1,即m<0时,B=∅,满足条件当m+1≤2m+1,即m≥0时,B≠∅,则m+1≥-22m+1≤5解得-3≤m≤2∴0≤m≤2综上满足条件的实数m的取值...

试题推荐
微信公众账号搜索答案