三千到四千年前气候变凉，北方的C系南下黄河流域，夏（古蒙古人）靠青铜武器，商（古满人）靠马拉战车征服多数O系人。

来源: rulvbobing 于 2025-09-26 16:13:57 [博客] [旧帖] [给我悄悄话] 本文已被阅读：次

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