2. 外语
  3. __________________(工程师设计出一种新方法) by which the production has been increased by 80 percent.

__________________(工程师设计出一种新方法) by which the production has been increased by 80 percent.

admin2009-04-23  62
问题 __________________(工程师设计出一种新方法) by which the production has been increased by 80 percent.
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答案The engineer worked out a new method
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大学英语四级

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