我觉得长江中下游的开发要迟于黄河流域，因为猛兽、蛇蝎、蚊子、和瘴气导致的疾病阻碍向南的扩张。

来源: 空城之主于 2026-03-13 07:21:49 [博客] [旧帖] [给我悄悄话] 本文已被阅读：次

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