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32. (26170-!-item-!-188;#058&003042)
The Chicago and Calumet
Riversoriginally flowed into the St. Lawrence by way of Lake Michigan, but havingbeen redirected by constructing canals so that the water now empties intothe Mississippi by way of the Illinois River.
(A) Rivers originally flowed into the St. Lawrenceby way of Lake Michigan, but having beenredirected by constructing
(B) Rivers had originally flowed into the St. Lawrenceby way of Lake Michigan, but they have beenredirected by constructing
(C) Rivers, which originally flowed into the St.Lawrence by way of Lake Michigan but have beenredirected by the construction of
(D) Rivers, originally flowing into the St. Lawrenceby way of Lake Michigan, but having been redirected by the construction of
(E) Rivers, originally flowing into the St.Lawrence by way of Lake Michigan, have beenredirected through the construction of
答案选D，为什么这题不能选C呢？不应该有转折关系吗？ | 
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发表于 2013-2-9 15:51:13
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楼主
我老犯这种低级错误！
