请教GWD27-Q7中的一个小问题

alanis_liu

GWD27-Q7

Providing initial evidence that airport are a larger source of pollution than they were once believed to be, environmentalists in Chicago report that the total amount of pollutant emitted annually by vehicles at O’Hare International Airport is twice as much as that which is being emitted annually by all motor vehicles in the Chicago metropolitan area.

A.      as much as that which is being emitted annually by all            

B.       as much annually as is emitted by the

C.      as much compared to what is annually emitted by all

D.      that emitted annually by all

E.       that emitted annually compared to the

答案是D， 可是谁能告诉我  A is twice as much as B ,这个比较中第二个AS 后面可以跟句子吗？第2个AS是连词吗？B 的错误在哪？谢谢~~~

waterpoo

此结构中A和B要是同类型的东西...所以我认为不能跟句子

boussoler

I  picked "D" on first shot. i insighted following reasons for

elimination.

A. as much as that which is being emitted annually by all - Wrong due to

great "Being"

B. as much annually as is emitted by the - HEre "The" is wrong as it

talks about all Motors, not any particular.

C. as much compared to what is annually emitted by all- WHere is "as"

D. that emitted annually by all - Correct.

E. that emitted annually compared to the[/quote] - HEre "The" is wrong

as it talks about all Motors, not any particular