2. 外语
  3. Some scholars have come ______ a new solution to the problem of population control.

Some scholars have come ______ a new solution to the problem of population control.

admin2010-01-15  24
问题 Some scholars have come ______ a new solution to the problem of population control.
选项 A、up
B、up with
C、down
D、down with
答案B
解析 come up with的意思是“(针对某问题)提出，想出”，符合本题的题意。come up意为“出现，上升，长出，上前”等；come down意为“落下，下跌，流传下来，败落，申斥”等；come down with意为“患上(疾病)”，均不适合用在本题中。
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