国际顶尖MBA申请交流平台--TOPWAY MBA

For the first time in the modern era, non-Hispanic Whites are officially a minority in California, which amounts to a little less than half the population of the state, down from nearly there-quarters only a decade ago.

A. which amounts to a little less than half the population of the state, down from nearly three-quarters only a decade ago
B. which amounts to a little less than half the population of the state, down from a decade ago, when it was nearly three-quarters
C. and that amounts to a little less than half the population of the state, down from a decade ago, when they were nearly three-quarters
D. amounting to a little less than half the population of the state, down from nearly three-quarters a decade ago
E. amounting to a little less than half the population of the state, down from what it was a decade ago by nearly three-quarters

答案是d 我选的e
想请问这里e为什么错了呢？
a b 选项中的which到底是指代的什么？每次做有关这种的题目比如前面加了个地点或时间，我都没办法判断后面的that或者which指代的是哪个该怎么判断呀？

which一般都是就近指代（除非后面有谓语动词单复数可以区别前面出现的名词）

D的 what it was a decade ago 罗嗦了（下降了将近3/4+时间状语a decade ago 简洁）

不过我还想问一下如果that这样的引导词前面是一个of结构那究竟that指的是of前

还是of后的呢？比如这个例子
Leaching, the recovery of copper from the drainage water of mines, as a

that bacteria taken an active part in the process.
(A) as a method of the extraction of minerals, it was well established
(B) as a method of the extraction of minerals well established
(C) was a well-established method of mineral extraction
(D) was a well-established method of extracting mineral that was
(E) had been a method of mineral extraction, well established
虽然答案不选d 而是c 可是d是不是错在that的修饰错误呢？

D中的that按形式上就是就近指代mineral of结构后面的关系代词也是就近指代的除非关系代词后面的谓语动词单复数表示指代of前的n.

D中的that定语不太对 as early as the eighteenth century是个状语不能做mineral的定语