Official 51 Lec 1
Question 6 of 6
According to the professor, why was the discovery of stone tools important?

A.

It proved that teosinte was simultaneously domesticated in multiple locations.

B.

It helped to confirm the period in which maize was first domesticated.

C.

It suggested that maize required farming techniques that were more complex than experts had previously assumed.

D.

It provided evidence that maize plants were used for more purposes than experts had previously assumed.

正确答案:B

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