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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 第二篇Saving MoneyWhere you save your money often depends on what you are saving for. If you are ...
- These animals migrate south annually in search of food.
- 共用题干 Energy and Public LandsThe United States boasts substantial energy resources. Federal lands pr...
- “There is no other choice,”she said in a harsh voice.
- 共用题干 Save Energy At HomeOn the average,Americans waste as much energy as two-thirds of the worlds p...
- The story was published with the sole purpose of selling newspapers.
- 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 Chimpanzees1 Chimpanzees（黑猩猩）will soon be extinct（灭绝）.If the present rate of hunting and habit...
- 共用题干 Learn about Light1 .Ancient civilizations were amazed by the existence of light for thousands ...