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托福TPO是我们托福阅读的重要参考资料，为了方便大家备考，下面小编给大家整理了托福TPO9阅读原文翻译及答案：Part1，希望大家喜欢。
托福TPO9阅读原文：Part1
It has long been accepted that the Americas were colonized by a migration of peoples from Asia, slowly traveling across a land bridge called Beringia (now the Bering Strait between northeastern Asia and Alaska) during the last Ice Age. The first water craft theory abo
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