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最佳答案：We need to reduce the number of vehicles on the road in order to lower their fue
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最佳答案：this will make the traffic get more and more crowded.the traffic jam in rush hou
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最佳答案：1.To the quality of the 3 power of 10 kg satellite launched into a circular orbi
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最佳答案：HEV is regarded as the best way to solve the energy saving all the time,therefor
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最佳答案：随着石油危机和环境污染的日益加剧,车用替代燃料的研究与开发越来越被重视.生物柴油作为一种新型可再生的生物质能源,具有和石化石油相近的特性,可在不改变发动机的结构
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最佳答案：Total company is currently working on the following four aspects:First,the devel
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最佳答案：The thermal power station is coal fuel.Because the world coal many of the storag
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最佳答案：1.Flood less than a week,the villagers would run out of food,fuel and water2.He