题目内容

7. The technician had no choice but to        the machine and fix all the parts once again in order to find out the problem.

   A. pull up   B. wipe out

   C. tear down   D. take apart

7. D句意为:"为了找出问题,技术员别无选择只有把机器拆开再重新安装。"pull up意为"向上拉;停下";wipe out意为"擦掉;消灭";tear down意为"拆毁";take apart意为"拆开"。

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