请教一道白勇语法题

18．Aging is a property ofJ1animakthat reach a fixed size at maturity， and the variations in life spans among different species are far greater as that among individuals from the same species: a fruit fly is ancient at 40 days, a mouse at 3years, a horse at 30, a man at 100, and some tortoises at 150.
（A）among different species are far greater as that among individuals from
（B）among different species are far greater than that among individuals from
（C）among different species are far greater than those
（D）between different species are far more than that between individuals of
（E）between different species are greater by far than is that between individuals from

正确答案是C，为什么？

偶选的是B。做题时没选C是觉得 those + the same speciecs 结构不完整， 而B也觉得有问题，as后面那个that不对，应该是复数those。

是不是资料中这个题目抄错了？里面反正l写成1之类的错误比比皆是，呵呵

我刚查了一下,这题同大全71,原题如下.估计是你那题资料有误

能不能顺便告诉我,这题在白勇书哪一页?

71.         Aging is a property of all animals that reach a fixed size at maturity, and the variations in life spans among different species are far greater as that among individuals from the same species: a fruit fly is ancient at 40 days, a mouse at 3 years, a horse at 30, a man at 100, and some tortoises at 150.

(A) among different species are far greater as that among individuals from

(B) among different species are far greater than that among individuals from

(C) among different species are far greater than those among individuals of

(D) between different species are far more than that between individuals of（C）

(E) between different species are greater by far than is that between individuals from

这个资料是我在CD上down的一个word文档

谢谢解答！