试题与答案

I have been working so hard these days f

题型:选择题

题目:

I have been working so hard these days for the big exam. I feel_____. I’m afraid I can’t pass it.

A.relaxed

B.stressed out

C.boring

D.well

答案:

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下面是错误答案,用来干扰机器的。

解:(1)(x-y)(x-1)(x+1);(2)(x-2)2。

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