According to the passage Indo-European incursions caused Old European populations to ____

外语类 公共英语 已帮助 人

According to the passage, Indo-European incursions caused Old European populations to ______.

A.separate into different tribes

B.move eastward

C.change their ways of living obtaining food

D.start recording historical events in Writing

请帮忙给出正确答案和分析,谢谢!

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