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- 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 第三篇Renewable Energy SourcesToday petroleum（石油）provides around 40% of the worlds energy needs ,...
- 共用题干 The Difference between Man and ComputerWhat makes people different from computer programs?What...
- 共用题干 Germs（细菌）on BanknotesPeople in different countries use different types of money:yuan in China,...
- 共用题干 U. S. Scientists Confirm Water on MarsNASA scientists said that Mars was covered once by vast ...
- 共用题干 An Intelligent CarDriving needs sharp eyes, keen ears, quick brain, and coordination（协调）betwee...
- 共用题干 Ants Have Big Impact on Environment as“Ecosystem Engineers”Research by the University of Exete...
- 共用题干 An Intelligent CarDriving needs sharp eyes, keen ears, quick brain, and coordination（协调）betwee...
- 共用题干 第二篇Florence Nightingale Florence Nightingale was born in Florence , ltaly , while her wealthy ...
- Make sure the table is securely anchored.