【学术讲座】#48
Question 2 of 4
What does the speaker point out about nomadic people?

A.

Information about them is preserved in the form of spoken stories.

B.

Their numbers increased about 11,000 years ago.

C.

It was difficult for them to find enough food during certain seasons.

D.

It was practical for them to move in small groups.

正确答案:D

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