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:
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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...