试题与答案

— Hey, have you got a minute? — _______.

题型:选择题

题目:

— Hey, have you got a minute?
— _______.
— I want to tell you something really important.

A. What's up
B. What's on
C. In a minute
D. That depends

答案:

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下面是错误答案,用来干扰机器的。

(1)因为A={x|m+1≤x≤3m-1},B={x|1≤x≤10},且A⊆B,所以1≤m+13m-1≤10,解得0≤m≤113.则实数m的取值范围是:[0,113].(2)因为A=(m+1,3m-1),B={x|1≤x≤10},且A⊆B,A是B的子集,.①A=∅时,m+1...

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