常温常压下,某气态烃与足量氧气共4L,完全燃烧后,恢复到原状态,气体体积减少为2L,则该烃可能是( )A 乙烷 B乙炔 C 丙烯 D丁烷 参考答案为A,可我不知怎么来的,
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![常温常压下,某气态烃与足量氧气共4L,完全燃烧后,恢复到原状态,气体体积减少为2L,则该烃可能是( )A 乙烷 B乙炔 C 丙烯 D丁烷 参考答案为A,可我不知怎么来的,](/uploads/image/z/2195590-22-0.jpg?t=%E5%B8%B8%E6%B8%A9%E5%B8%B8%E5%8E%8B%E4%B8%8B%2C%E6%9F%90%E6%B0%94%E6%80%81%E7%83%83%E4%B8%8E%E8%B6%B3%E9%87%8F%E6%B0%A7%E6%B0%94%E5%85%B14L%2C%E5%AE%8C%E5%85%A8%E7%87%83%E7%83%A7%E5%90%8E%2C%E6%81%A2%E5%A4%8D%E5%88%B0%E5%8E%9F%E7%8A%B6%E6%80%81%2C%E6%B0%94%E4%BD%93%E4%BD%93%E7%A7%AF%E5%87%8F%E5%B0%91%E4%B8%BA2L%2C%E5%88%99%E8%AF%A5%E7%83%83%E5%8F%AF%E8%83%BD%E6%98%AF%EF%BC%88+%EF%BC%89A+%E4%B9%99%E7%83%B7+B%E4%B9%99%E7%82%94+C+%E4%B8%99%E7%83%AF+D%E4%B8%81%E7%83%B7+%E5%8F%82%E8%80%83%E7%AD%94%E6%A1%88%E4%B8%BAA%2C%E5%8F%AF%E6%88%91%E4%B8%8D%E7%9F%A5%E6%80%8E%E4%B9%88%E6%9D%A5%E7%9A%84%2C)
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