单选题:Compared with the device designed by Larry Rome, this new de

  • 题目分类:英语(一)
  • 题目类型:单选题
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题目内容:
Compared with the device designed by Larry Rome, this new device __________. A.produces power without adding more loads to the walker
B.can produce more power in a much shorter time
C.needs to be equipped with a battery
D.can help the walker walk faster
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