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标题: GWD-31-37语法题求解答 [打印本页]

作者: Marinamai 时间: 2015-8-27 12:01
标题: GWD-31-37语法题求解答

In 1994the white house named Dr RuthR. Faden chairperson of the federal advisorycommittee of experts they assigned to do a report on the history andethics of the government’s radiation experiments on humans in the 1950’s and 1960’s .

A. they assigned to do

B. to be assigned doing

C. that was being assigned doing

D. assigned for doing

E. it assigned to do

作者: Marinamai 时间: 2015-8-27 12:01
答案是E，求解释！谢谢大牛们

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