不透明
发表于 2025-3-28 15:35:05
Wibren van der Burg,Theo van Willigenburgitors is an arms race, where each participant tries to stay ahead of rivals, e.g. in reducing unit costs; the possible advantage of each is constantly eroded, but the . result is a long-term fall in costs, and hence also in prices; growth occurs because more is produced with the same resource inputs
蚀刻术
发表于 2025-3-28 19:17:23
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