求助prep1一道题，解析看不懂

Padmeelena

64. (27947-!-item-!-188;#058&003452)

Recently documented examples of neurogenesis, the production of new brain cells, include the
brain growing in mice when placed in a stimulating environment or neurons increasing in canaries
that learn new songs.

(A) the brain growing in mice when placed in a stimulating environment or neurons increasing in
canaries that
(B) mice whose brains grow when they are placed in a stimulating environment or canaries whose
neurons increase when they
(C) mice's brains that grow when they are placed in a stimulating environment or canaries' neurons
that increase when they
(D) the brain growth in mice when placed in a stimulating environment or the increase in canaries'
neurons when they
(E) brain growth in mice that are placed in a stimulating environment or an increase in neurons in
canaries that

(A) the brain…无法与the production of…平行；growing使用错误,应该用grow的名词形式growth来替
换,increasing应该用increase替换;介词结构when placed无论是修饰主句的主语还是所修饰动词
(include)的逻辑主语,该结构都是修饰的documented examples,而从逻辑意思上看,when placed应该
修饰mice,因此when placed修饰对象错误.
(D) when placed修饰documented examples,导致逻辑意思错误,代词they就近指代neurons,导致逻辑意思错误

为什么介词结构when placed无论是修饰主句的主语还是所修饰动词
(include)的逻辑主语,该结构都是修饰的documented examples呢？

谢谢大家~

cindy796

因为动词include的主语也是document example啊

Padmeelena

对不起，还是没懂，不要pia我。 when placed 不是应该修饰include句吗？那它怎么还能跑到前面修饰document呢？

wangxiwei

when placed做伴随状语 优先修饰的是主句动作 include
placed in。。。修饰动作的逻辑主语 所以修饰 document example

Padmeelena

哦，这样啊，谢谢啦