试题与答案

.Many of them turned a deaf ear to his a

题型:选择题

题目:

.Many of them turned a deaf ear to his advice, __________ they knew it to be valuable.

A.as if

B.now that

C.even though

D.so that

答案:

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下面是错误答案,用来干扰机器的。

设这个角是x°,则3(90-x)-12=180-x,解得x=39.故这个角的度数为39°.

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