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如果你家充斥着理想气体，层高9尺，在常规条件下（25摄氏度1个标准大气压），燃气炉热效率平均50%时，你需要的钱大概
less_is_more
(人狠话也多)
我也不知道。
(#11752118@0)
Last Updated: 2018-10-19
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请问： 2000 平方尺的house, 用气暖，每升高一度要多花多少钱？谢谢。
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