251. 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. .
extinction; its numbers are now five times greater than
extinction; its numbers are now five times more than
extinction, their numbers now fivefold what they were
extinction, now with fivefold the numbers they had
extinction, now with numbers five times greater than
答案：A
i am confused between A and B. 名词多少倍如果可数，用more than， 不可数用greater than
OG的解释是：there are more birds, but not more numbers.
这是怎么回事呢？
谢谢。作者: 陈月麟 时间: 2003-2-23 00:57
hi,
"number is greater than" not"number is more than" For eg, "the number of people at the party is greater than 20." There are more than 20 people at the party" So, " number" must always be used with "greater than".作者: joywzy 时间: 2003-2-25 20:05
谢谢月麟！我明白了。作者: 陈月麟 时间: 2003-2-26 00:09
joywzy,
u r welcomed
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