大全566 prep1-2

1angela11

1.Organized in 1966 by the Fish and Wildlife Service, the Breeding Bird Survey uses annual roadside counts along established routes for monitoring of population changes of as many as, or of more than 250 bird species, including 180 songbirds.
(A) for monitoring of population changes of as many as, or of
(B) to monitor population changes of as many, or
(C) to monitor changes in the populations of
(D) that monitors population changes of（C）
(E) that monitors changes in populations of as many as, or
prep解释说B选项调换了中心词的位置使后面的of+，，，错误修饰了changes而不是population
暂且不管B选项后面比较级考点的错误，为什么不能将population changes放在一起，of+，，，来修饰它？？翻译了下不觉的有什么问题。
多谢大家解答和讨论！