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- 共用题干 Robots May Allow Surgery in SpaceSmall robots designed by University of Nebraska researchers m...
- 共用题干 Ants Have Big Impact on Environment as“Ecosystem Engineers”Research by the University of Exete...
- 共用题干 The Forbidden AppleNew York used to be the city that never sleeps. These days its the city tha...
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- Hearing problems may be alleviated by changes in diet and exercise habits.
- The sea turtles natural habitat has been considerably reduced.
- We had trouble finding a pure water supply.
- What puzzles me is why his books are so popular.
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