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题目内容
（信阳师范学院-英语词汇学）
Which of the following words was used during the American Civil War to refer to those northerners who were secretly aiding the South? ( )
A.Rattlesnake
B.Villain
C.Informer
D.Copperhead
A.Rattlesnake
B.Villain
C.Informer
D.Copperhead
参考答案