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最佳答案：楼上犯错了.这个智能翻不出来.是gasoline made by cars has already been a really hard problem你可以相
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最佳答案：Your career _____1. Have you ever concerned the problem of pollution caused by A
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最佳答案：摩托车尾气中的二氧化碳的排放量比汽车低百分之三十八The esmissions of the carbon dioxide in the motorcycle
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最佳答案：I often go to school by bike.Bicycle is not exhaust, no noise, no waste of resou
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最佳答案：Three-way catalyst (TWC) is the control of vehicle exhaust pollution one of the
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最佳答案：Three-way catalyst( TWC)s control one of the most valid meanses in the automobil
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最佳答案：Automotive Diesel Engine Emissions Control StrategyAbstractIn this paper,the pur
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最佳答案：Emissions of carbon dioxide from motorcycles are 38% less than the emissions pro