问题
选择题
Most scientists 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; the
答案
答案：A
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Most scientists 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; the
答案：A