Dr. Wang has made much contribution to the theories of modern physics at the____

游客2023-11-12  27

问题 Dr. Wang has made much contribution to the theories of modern physics at the______of his health.

选项 A、cost
B、disposal
C、mercy
D、expenditure

答案 A

解析 考查固定搭配。at the cost of“以……为代价”;at the disposal of“由……处置”;at the mercy of“任……摆布”;expenditure不与at搭配,expenditure of表示“……的消费,支出”。根据词义可知,应选A。
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