Many experts seem to agree that certain limit should be set on consumption of cars to ease

发布时间：2020-08-17 04:27:40

Many experts seem to agree that      certain limit should be set on      consumption of cars to ease air pollution.
A. a; the
B. /; the
C. the; /
D. the; a

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(答案→)A. a; the
B. /; the
C. the; /
D. the; a
解析：第一个空，“一个必然的限制”是泛指，故用不定冠词a；第二个空，是特指，故用定冠词the。
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