4.2ka事件後，氣候逐漸恢複，文明(和文化)地點發生了轉移，中國轉到了陝西甘肅青海地區。

來源: JustWorld 於 2023-07-03 06:50:58 [舊帖] [給我悄悄話] 本文已被閱讀：次

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