标题: 请教一道关于twice用法的题目 [打印本页] 作者: xyc19901015 时间: 2011-3-16 23:25 标题: 请教一道关于twice用法的题目 According to surveys by the National Institute on Drug Abuse, about 20 percent of young adults used cocaine in 1979, （doubling those reported in the 1977 survey）. (A) doubling those reported 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 正确选项E。。。这里的twice是如何修饰number的？作者: powers 时间: 2011-3-17 00:02
D把those改成that就对了吗?