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标题: 请教一道题 [打印本页]

作者: 雨天的书 时间: 2011-12-28 18:00
标题: 请教一道题

?1.GWD21-Q1:

?Accordingto analysts, an alliance between three major personal computer companies andmost of the nation’s largest local telephone companies would enable customersto receive internet data over regular telephone lines withspeeds much higher than iscurrently possible.

A.withspeeds much higher than is

B.withspeeds that are much higher than are

C.atmuch higher speeds as are

D.atmuch higher speeds than that

E.atspeeds much higher than are

这道题我想的是A，答案是E，at的用法不清楚，这里are的主语是什么呢

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