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题目内容
（陇东学院-大学英语2(专升本)）
18. (单选题) As a rule, domestic servants doing odd jobs are paid_____.(本题1.0分)
A、 by the hour
B、 by hour
C、 by an hour
D、 by hours
A、 by the hour
B、 by hour
C、 by an hour
D、 by hours
参考答案
