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[Problem Solving]
试题详情
题目：
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?
选项:
A、5½ ft
B、7½ ft
C、8 ½ ft
D、9½ ft
E、10 ft
答案:
B
提问：
这道题的题意不理解求老师解答。
解答：
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提问：
这道题的题意不理解求老师解答。
解答：
点赞0
阅读2125
提问：
题意没弄明白。
解答：
点赞-1
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