请教PREP 139

139.       (32262-!-item-!-188;#058&006043)

On Earth, among the surest indications of sunspot cycles are believed to be the rate that trees grow, as seen in the rings visible in the cross sections of their trunks.

(A) On Earth, among the surest indications of sunspot cycles are believed to be the rate that trees grow

(B) On Earth, among the surest indications of sunspot cycles are, it is believed, the rate of tree growth

(C) On Earth, the rate at which trees grow is believed to be among the surest indications of sunspot cycles

(D) Among the surest indications on Earth of sunspot cycles, believed to be the tree growth rate

(E) Among the surest indications on Earth of sunspot cycles is believed to be the rate at which trees grow

这道题目的答案是E，我觉得E改变了原来句子的结构，而且我对这句话的倒装有点不明白，谁能帮忙解释一下啊？谢谢。

顶啊。

我也不太明白这题，首先这句话的意思不太懂，其次C为什么错

请NN指点

as seen在C和E中应该都是修饰the rate at which trees grow，因为不论倒不倒装，都是修饰主语的。

但我还是对C与E有疑问，请NN指教。

首先要倒装，

在地球上，最能确认太阳黑子的运行出现的是树的年轮，大概就是这个意思。

ON EARTH 是状语，不是倒装，不是强调树木在地球上,

fk, but emphasis " all these could be measured to mention the sunspot " , all the things on earth can describe sunpot circle ,  so ,

a,b,d,e are in accordance with the original one, C is absolutely wrong !

second, pick out the verb, among ******, superlative , should use the single verb , E

weishenmebunengdapinyinle ?

倒装句主要起强调作用

在GMAT里,任何将倒装句改回正常结构的选项,一定错.