13. (单选题) before the problem grows into a big one, we have to take_____. Or we will suffer a great loss.( )(本题3.0分) A、 action B、 act C、 acting D、 activity

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题目内容（赤峰学院-大学英语）

13. (单选题) before the problem grows into a big one, we have to take_____. Or we will suffer a great loss.( )(本题3.0分)
A、 action
B、 act
C、 acting
D、 activity

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吉首大学针灸治疗学（专升本）