Such medical equipment is in danger of breaking down, if not taken good care of.
A. a; the
B. a; /
C. /; the
D. /; /
网友回答
A. a; the
B. a; /
C. /; the
(答案→)D. /; /
解析：考查冠词。句意：如果不好好保养，这样的医疗器械要处于毁坏的危险当中。根据题意可知前文泛指任何医疗器械，equipment为抽象名词不可数，泛指不用冠词。下文为固定短语in danger of处于危险之中。故选D。