Sentence Correction
试题详情
题目：
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.
选项:
A、for monitoring of population changes of as many as, or ofto monitor population changes of as many, or
B、to monitor changes in the populations of
C、that monitors population changes of
D、that monitors changes in populations of as many as,or
答案:
C
提问：
c,d选项相较于ade，少了“as many as”这层意思。就是说ade是population“大于等于”250，cd是population“大于”250。请问这一点会影响cd的可选性吗？
谢谢。
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