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题目内容
（商丘师范学院-英美文学选读）
(单选题) An undergraduate student has to earn a certain number of______in order to receive a degree at the end of four years study.(本题1.0分)
A、 credits
B、 grades
C、 scores
D、 classes
A、 credits
B、 grades
C、 scores
D、 classes
参考答案