你的英语好，你看的英语文献多，那你说印地安人应该是多少?

来源: 547788 于 2018-11-26 19:43:29 [] [博客] [旧帖] [给我悄悄话] 阅读数 : (0 bytes)

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• Estimated 7 to 12 million lived in North America. -ZoyaWashington- ♀ 给 ZoyaWashington 发送悄悄话 (281 bytes) () 11/26/2018 postreply 20:24:47

• Most scholars-as low as 10 million up to around 50 million -尚文- ♀ 给 尚文 发送悄悄话 (2710 bytes) () 11/26/2018 postreply 20:34:28

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