2. 外语
  3. Clocks operate with gears. So do cars and so does the device invented by the Indian scientists to produce electricity.

Clocks operate with gears. So do cars and so does the device invented by the Indian scientists to produce electricity.

admin2008-12-15  38
问题 Clocks operate with gears. So do cars and so does the device invented by the Indian scientists to produce electricity.
选项
答案钟表是由齿轮来带动的。汽车和印度科学家发明的这种发电设备也是一样的。
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