单选题
Which of the following is mentioned as supporting the Pleistocene overkill hypothesis?
A、
( Many of the animals that became extinct were quite larg
B、
( Humans migrated into certain regions around the time that major extinctions occurre
C、
( There is evidence that new species were arriving in areas inhabited by human
D、
( Humans began to keep and care for certain animal
【正确答案】
B
【答案解析】
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