历史上很长时间里大一统中国是世界上最富裕的国家，而黑暗的一千年欧洲并不富裕。

来源: 老生常谈12 于 2025-02-21 17:44:43 [博客] [旧帖] [给我悄悄话] 本文已被阅读：次

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