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  • 科目:英语
  • 题型:单选题
  • 难度:困难
  • 人气:2149

Scientists believe native Americans arrived by crossing the land bridge that connected Siberia(西伯利亚)and         more than 10,000 years ago.

A.this is Alaska B.Alaska is now C.is now Alaska D.what is now Alaska
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ScientistsbelievenativeAmerica