據說古巴比倫最早。但唯中國獲得普及，符合我的生產力轉化條件，下麵要算活字印刷。其他很多隻能算文化遺產

來源: 老鍵於 2023-12-02 23:36:36 [博客] [舊帖] [給我悄悄話] 本文已被閱讀：次

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