Jumping out of train running at a speed of 200 kilometers per hour is quite dangerous p

发布时间：2020-08-15 00:25:13

Jumping out of      train running at a speed of 200 kilometers per hour is quite      dangerous practice.
A. /; the
B. /; a
C. a; a
D. the; the

网友回答

A. /; the
B. /; a
(答案→)C. a; a
D. the; the
解析：前一空表示某一列火车，表示泛指，所以用a，第二空说，这是一次危险的经历，所以也是用a。
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