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题目内容
（西安石油大学-工程地质学）
6. (单选题) He __ himself in his scientific research since his divorce.(本题2.0分)
A、 has devoted
B、 has buried
C、 was buried
D、 has been buried
A、 has devoted
B、 has buried
C、 was buried
D、 has been buried
参考答案
