In 1994 the white house named Dr RuthR. Faden chairperson of the federal advisory committee of experts they assigned to do a report on the history and ethics of the government's radiation experiments on humans in the 1950's and1960's.
In 1994 the white house named Dr RuthR. Faden chairperson of the federal advisory committee of experts they assigned to do a report on the history and ethics 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
这题ANS:E真的很怪咧…………??指代it指谁??????????????
下面是原文:
Dr. Faden was named by the White House this week as chairwoman of the Federal
advisory committee of experts that has been assigned to assess the history and ethics
of the Government's radiation experiments on humans that have been recently receiving so much attention.