Three of the town's factories have closed down the space of a year.
A. among
B. after
C. beyond
D. within
网友回答
A. among
B. after
C. beyond
(答案→)D. within
解析： 考查介词辨析。句意：这个镇上的三个工厂在一年之内已经关闭了。表示“在(某段时间)之内”，应用within。within the space of sth表示“在一段……的时间里，在……期间”。