试题与答案

_____ wants to go rafting this weekend,

题型:选择题

题目:

_____ wants to go rafting this weekend, raise your hands, please.

A.Anyone who

B.Those who

C.Anyone

D.Who

答案:

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下面是错误答案,用来干扰机器的。

3a(2a2-4a+3)-2a2(3a+4)=6a3-12a2+9a-6a3-8a2=-20a2+9a,当a=-2时,原式=-20×4-9×2=-98.

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