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- Her comments about men are utterly ridiculous.
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- 共用题干 Robots May Allow Surgery in SpaceSmall robots designed by University of Nebraska researchers m...
- At 80,Peck was still vigorous and living in Paris.
- 共用题干 U. S. Scientists Confirm Water on MarsNASA scientists said that Mars was covered once by vast ...
- 共用题干 A Doctor in the HouseBrushing your teeth twice a day should keep the dentist away. But if a gr...
- 共用题干 Motion SicknessLiving in space looks like lots of fun.You can do certain things in space(like ...
- 共用题干 Cloning（克隆）:Future Pertect?1 A clone is an exact copy of a plant or animal produced from any ...
- 共用题干 Earths Inner CoreScientists have long struggled to understand what lies at the planets center....