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- 共用题干 An Intelligent CarDriving needs sharp eyes, keen ears, quick brain, and coordination(协调)betwee...
- 共用题干 A Star Is Born1 The VLT (Very Large Telescope) is the worlds largest telescope(望远镜)and is taki...
- 共用题干 Batteries Built by VirusesWhat do chicken pox,the common cold,the flu,and AIDS have in common?...
- 共用题干 More Than 8 Hours Sleep Too Much of a Good Thing1 Although the dangers of too little sleep are...
- 共用题干 Every Dog Has His SayKimiko Fukuda always wondered what her dog was trying to say. Whenever sh...
- 共用题干 Sharks Perform a Service for Earths WatersIt is hard to get people to think of sharks as anyth...
- 共用题干 Global WarmingFew people now question the reality of global warming and its effects on the wor...
- 共用题干 Animals “Sixth Sense”A tsunami(海啸)was triggered(引发)by an earthquake in the Indian Ocean in Dec...
- 共用题干 The Smog(烟雾)For over a month,lndonesia was in crisis.Forest fires raged out of control as the ...
- This was an unexceptionally brutal attack.