還是體製，除了科舉，其他都是奇技淫巧; 乾隆據說學過幾何，但基本停留在業餘興趣，從未想過推廣

來源: jinjiaodw 於 2023-11-29 21:23:28 [舊帖] [給我悄悄話] 本文已被閱讀：次

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