[题目] 寂天阅读满分2 p.19 Q.116

楼主: imych   2017-05-03 15:33:04
书名:寂天满分阅读2
版本:
页数:p.19 第116题
题目:
The newly enforced regulation states that people are not allowed to
smoke _____ fifty feet of any hospital entrance.
(A) about
(B) within
(C) beside
(D) nearby
疑问:都是介词,为什么是B而不能用C?

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