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- 共用题干 The Forbidden AppleNew York used to be the city that never sleeps. These days its the city tha...
- 共用题干 Learn about Light1 .Ancient civilizations were amazed by the existence of light for thousands ...
- 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 Global WarmingFew people now question the reality of global warming and its effects on the wor...
- 共用题干 Free Statins with Fast Food could Neutralize Heart RiskFast food outlets could provide statin ...
- 共用题干 The iPad1 The iPad is a tablet computer（平板电脑）designed and developed by Apple. It is par-ticula...
- An Essential Scientific Process All life on the earth depends upon green plants. Using sunlight, th...
- 共用题干 Giant StructuresIt is an impossible task to select the most amazing wonders of the modern worl...
- He asserted that nuclear power was a safe and non一polluting energy source.
- The ice is not thick enough to bear the weight of a tank.