Scientists in the world are expected to find a(n) ______ to the problem of overpopulation.

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问题 Scientists in the world are expected to find a(n) ______ to the problem of overpopulation.

选项 A、reply
B、solution
C、response
D、answer

答案B

解析 be expected to do有望做……/reply(to)回复,答复/solution(to)表示解决……的方法/response(to)反应,回答,响应/answer(to)答案。a solution to a problem解决问题的方法。
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