摘要： Scientists believe native Americans arrived by crossing the land bridge that connected Siberiaand 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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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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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