知识问答
最佳答案：Today's society is a highly developed technological society. However, the shortc
最佳答案：把三种气体分别放入三集气瓶里,把点燃的木条分别放如三集气瓶,燃烧更剧烈的是O2,别的两瓶都使燃着的木条熄灭,那两瓶是氮气和二氧化碳.再在两瓶中加入澄清的石灰水,
最佳答案：One of the most serious problem in front of the world is the global warming.Ther
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
最佳答案：With global environment deterioration more people choose Guo "low carbon life" t
最佳答案：Emissions of carbon dioxide from motorcycles are 38% less than the emissions pro
最佳答案：Low-carbon life is the lifestyle of the time to minimize energy consumption, the
最佳答案：Today's society is a highly developed technological society.However,the shortcom
最佳答案：How to save electricity in our daily lifeElectricity is very important in our da
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