求教GWD的一题

lavenderwu

Unlike mainstream American businesses, more than half of which fail, the failure rate for businesses in the Amish community hovers around 5 percent.

A.Unlike mainstream American businesses, more than half of which fail
B.Unlike mainstream American businesses, in which the failure rate is more than half
C.Unlike mainstream American businesses, where more than half of them fail
D.While the rate of mainstream American businesses failing is more than half
E.While more than half of mainstream American businesses fail
为什么D不正确？正确答案选E

lavenderwu

句意。。好吧，我试着接受，那么再接着问一个题
Five hundred million different species of living creatures have appeared on Earth, nearly 99 percent of them vanishing.

A.Five hundred million different species of living creatures have appeared on Earth, nearly 99 percent of them vanishing.
B.Nearly 99 percent of five hundred million different species of living creatures that appeared on Earth have vanished.
C.Vanished are nearly 99 percent of the five hundred million different species of living creatures that appeared on Earth.
D.Of five hundred million different species of living creatures that have appeared on Earth, nearly 99 percent of them have vanished.
E.Of the five hundred million different species of living creatures that have appeared on Earth, nearly 99 percent have vanished.
这题我选的B 答案是E ，也是句意判断吗，我觉得B很OK呢