A-A+

Which sentence proves that setting the giant r

2022-08-05 18:24:59 问答库 阅读 170 次

问题详情

Which sentence proves that setting the giant reflector is a delicate operation?
A.The first sentence in the last paragraph.
B.The second sentence in the last paragraph.
C.The last sentence in the last paragraph.
D.The last sentence in the third paragraph.

参考答案

正确答案:C
解析:这个问题涉及到两个方面即组成这个装置需要很多镜面而且它们放置的角度必须合适,使它们的光线能在这个巨大的反射装置前59英尺汇聚成一点。相比较而言,后者对整个装置的运转是非常关键的。而且最后一句话提到一个目的状语“For the furnace to operate”,因此应选择C。

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