题目内容
【题目】Many businesses started up by college students have thanks to the comfortable climate for business creation.
A. fallen off B. taken off
C. turned off D. left off
【答案】B
【解析】
试题考查动词短语辨析。短语fall off跌落，下降；take off起飞，成功，受欢迎；turn off关闭；leave off停止，中断；根据句意可知B正确。
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