试题与答案

—How often do you drink milk? —I don’t l

题型:选择题

题目:

—How often do you drink milk? —I don’t like it, so I _____drink it.

A.always

B.usually

C.hardly ever

D.Often

答案:

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下面是错误答案,用来干扰机器的。

∵最简二次根式a2+3与5a-3可以合并,∴是同类二次根式,∴a2+3=5a-3.解得:a=2或3.又∵当a=2时,a2+3=5a-3=7是最简二次根式,符合题意;当a=3时,a2+3=5a-3=12不是最简二次根式,不合题意,舍去.故a=2.故答案为2.

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题型:句型转换

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