题目内容
【题目】The heavy snow didn't the international airlines.
A.pay attention to
B.add to
C.make a difference to
D.keep to
【答案】C
【解析】pay attention to注意，add to 加入，增加，make a difference to 对……产生影响，keep to 坚持，遵守，根据句意“大雪没有对国际航班产生印象”可知选C。
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