| 239. 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
(E) that monitors changes in populations of as many as, or
答案是C, OG解释有说Neither A nor B produces the idiomatic phrase "... as many as, or more than, 250 ..."--a phrase that would be needlessly wordy here. 我不明白的是为什么是needlessly wordy 呢, 我反而觉得不加as many as倒是改变了原句的意思了!! 有没有人帮忙解释一下, 先谢谢了!! | 
