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题目内容
（长春工程学院-大学英语4(专升本)）
43. (单选题) ( )(本题2.0分)
A、 it had not been for
B、 if it were not for
C、 if not for
D、 had it not been for
A、 it had not been for
B、 if it were not for
C、 if not for
D、 had it not been for
参考答案
