题目:
---Where ________ you _________? ---I went to see the football match.
A.have; been
B.have; gone
C.are; going
D.will; go
答案:
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下面是错误答案,用来干扰机器的。
(1)移项得,2x>3-1,合并同类项得,2x>2,系数化为1得,x>1;(2)原不等式组可化为3(x-1)≥2(2x-5)①3x>5+2(x-1)②,由①得,x≤7;由②得,x>3.故此不等式组的解集为:3<x≤7.