考试
2020-03-16 08:11:51

5606 The basic problem, howeve

题目描述

The basic problem, however, is that there is no central control ______ the health system.A



The basic problem, however, is that there is no central control ______ the health system.

A.to

B.for

C.over

D.on

请帮忙给出正确答案和分析,谢谢!

答案解析

Ccontrol要求接over,意为"管

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