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[Sentence Correction]
试题详情
题目：
Around 1900, fishermen in the Chesapeake Bay area landed more than seventeen million pounds of shad in a single year, but by 1920, overfishing and the proliferation of milldams and culverts that have blocked shad migrations up their spawning streams had reduced landings to less than four million pounds.
选项:
A、
A. that have blocked shad migrations up their spawning streams had reduced landings to less
B、
B. that blocked shad from migrating up their spawning streams had reduced landings to less
C、
C. that blocked shad from migrating up their spawning streams reduced landings to a lower amount
D、
D. having blocked shad from migrating up their spawning streams reduced landings to less
E、
E. having blocked shad migrations up their spawning streams had reduced landings to an amount lower
答案:
B
提问：
老师号，请问在ABE里如何选，谢谢
解答：
点赞0
阅读1981
提问：
我想请问金老师，这道题我在BD中二选一，我要是从时态判断，差别就是B过度捕捞减少上岸量发生在过度捕捞阻碍shad迁徙之前，D过度捕捞阻碍shad迁徙发生在减少上岸量之前，如何判断动作先后？还是说从修饰的差别入手？过度捕捞减少shad迁徙需不需要时态？
解答：
点赞0
阅读1989
提问：
老师号，请问在ABE里如何选，谢谢
解答：
点赞0
阅读1982
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