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题目内容
（梦想在线大学英语1）
The most important thing about cotton in history is ________ part that it played in ________ Industrial Revolution.(2.0分)
A: 不填；不填
B: the；不填
C: the; the
D: a; the
A: 不填；不填
B: the；不填
C: the; the
D: a; the
参考答案