囧哥做语法50
The gyrfalcon, an Arctic bird of prey, has survived a close brush with extinction; its numbers are now five times greater than when the use of DDT was sharply restricted in the early 1970's.A. extinction; its numbers are now five times greater than
B. extinction; its numbers are now five times more than
C. extinction, their numbers now fivefold what they were
D. extinction, now with fivefold the numbers they had
E. extinction, now with numbers five times greater than
B 中more than 错，应该用greater than，表示数量之大，而不是多
C 中句子没有复数名词，因此their没有指代对象
Now with会产生与with extinction平行的疑惑，而且DE的表达不简洁，with短语后面跟了when的从句，所以DE不对,D中的they没有指代，
选A
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