蘇美爾算盤見過，還準備侃侃，華夏的籌算隻聽說過，未見具體內容。這次開眼了，大謝不止。

來源: 來罘於 2024-07-21 09:53:45 [博客] [舊帖] [給我悄悄話] 本文已被閱讀：次

WENXUECITY.COM does not represent or guarantee the truthfulness, accuracy, or reliability of any of communications posted by other users.