It makes big difference to keep calm when giving first aid.A. a, /B. /, theC. a, theD. /

发布时间：2020-08-17 10:59:55

It makes      big difference to keep calm when giving      first aid.
A. a, /
B. /, the
C. a, the
D. /,a

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(答案→)A. a, /
B. /, the
C. a, the
D. /,a
解析：考查冠词。第一个空是固定短语make a big difference “起重要作用”。第二个空也是固定短语first aid“急救”不用冠词。句意：当实施急救时保持镇静很重要。所以答案选A。
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