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[Issue Essay]

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题目:

Analytical!

选项:

答案:

提问:

图发不上来,是一个半圆的隧道然后宽是20 The figure above shows the dimensions of a semicircular cross section of a one-way tunnel. The single traffic lane is 12 feet wide and is equidistant from the sides of the tunnel. If vehicles must clear the top of the tunnel by at least ½ foot when they are inside the traffic lane, what should be the limit on the height of vehicles that are allowed to use the tunnel? A. 5½ ft B. 7½ ft C. 8 ½ ft D. 9½ ft E. 10 ft

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阅读306372
解答: sysadmin

提问:

这个题为啥不选D? D不是很好的平行结构吗?@ 唐老师

解答:

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解答: 唐瑭老师

提问:

老师,这题没有明白。什么意思,答案B,我选D,不知道为啥? As 和when有什么区别@ 唐老师

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阅读427192
解答: 唐瑭老师

提问:

老师,这道题我都不懂从哪里开始下手去解开

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解答: 唐瑭老师

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解答: 唐瑭老师

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