事情 发表于 2025-3-30 09:16:31

Lernfreiheit und Studienordnung, The answers are complex. One important reason is that the energy that is used to support ourselves, our families, or our economic activity generally is used at some other location and by other people, or by quiet automatic machines whose fuel tends to be relatively cheap. After all, coal, oil, and

effrontery 发表于 2025-3-30 13:48:09

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Reverie 发表于 2025-3-30 20:32:57

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查看完整版本: Titlebook: Energy and the Wealth of Nations; Understanding the Bi Charles A. S. Hall,Kent A. Klitgaard Textbook 20121st edition Springer Science+Busin