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- 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 Migrant(移民的)WorkersIn the past twenty years,there has been an increasing tendency for workers ...
- She came across three children sleeping under a bridge.
- 共用题干 The Northern LightsThe Sun is stormy and has its own kind of weather It is so hot and active t...
- 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 Save Energy At HomeOn the average,Americans waste as much energy as two-thirds of the worlds p...
- 共用题干 Sharks Perform a Service for Earths WatersIt is hard to get people to think of sharks as anyth...
- The mountains look glorious at sunrise.
- “There is no other choice,”she said in a harsh voice.
- 共用题干 An Intelligent CarDriving needs sharp eyes, keen ears, quick brain, and coordination(协调)betwee...
