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题目内容
（河南工学院-大学英语）
17. (单选题) He once worked in a company, _____ he went abroad for further study(本题2.0分)
A、 from which
B、 after that
C、 after which
D、 from this
A、 from which
B、 after that
C、 after which
D、 from this
参考答案
