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- 共用题干 Global WarmingFew people now question the reality of global warming and its effects on the wor...
- Primer on Smell In addition to bringing out1 the flavor of food, what does the sense of smell do...
- 共用题干 High-Tech Warfare（战争）Today,high-tech warfare is no longer an abstract concept,but a real issue...
- 共用题干 Learn about Light1 .Ancient civilizations were amazed by the existence of light for thousands ...
- 共用题干 Walk a Quarter-Mile or DiemIf you can walk a quarter-mile,odds（可能性）are you have at least six y...
- 共用题干 Free Statins with Fast Food could Neutralize Heart RiskFast food outlets could provide statin ...
- 共用题干 Ecosystem1. The word “ecosystem” is short for ecological（生态的）system. An ecosystem is where liv...
- 共用题干 Animals “Sixth Sense”A tsunami（海啸）was triggered（引发）by an earthquake in the Indian Ocean in Dec...