Historians agree that early American Indians came from Siberia，（） a long-vanished land bridge across the Bering Strait.
Historians agree that early American Indians came from Siberia，（） a long-vanished land bridge across the Bering Strait.
A、cross
B、crossing
C、crossed
D、to cross
正确答案：B
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时间：2025-12-03 23:28:36