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According to surveys by the National Institute on Drug Abuse, about 20 percent of young adults used cocaine in 1979, doubling those reporeted in the 1977 survey.
A .doubling those reporeted in the 1977 survey
B. to double the number the 1977 survey reported
C.twice those the 1977 survey reported
D.twice as much as those reported in the 1977 survey
E.twice the number reported in the 1977 survey
我已经知道B C D 肯定是不对的
E 读下来,是对的。
但是,A 读下来也找不到什么错误 >_< #
答案是E, 求解释A的错误在哪儿~~~~~~?
是those的问题?
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