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21.
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
For ex: The percentage of increase in new CPU’s performance is twice the number to its predecessor’s ones.
(A) doubling those reported in the 1977 survey [Doubling incorrectly modifying the meaning – eliminate it]
(B) to double the number the 1977 survey reported [This is changing the meaning – eliminate it]
(C) twice those the 1977 survey reported [Number is compared people – eliminate it]
(D) twice as much as those reported in the 1977 survey [Number is compared people – eliminate it]
(E) twice the number reported in the 1977 survey [ The number is compared correctly – hold it]
Answer: E 在网上找到了这样的解释, 请问 20 percent of adults 做主语的时候, 侧重点是在数的概念上面吗? 用这一点排除ACD 因为都用数与后面those指代的人来比较了? | 
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发表于 2009-10-15 14:05:00
