单项选择题

From the third paragraph, we can infer that ______.

A．chimps keep in mind permanently what they learned
B．chimps stick to what they learned in discovery
C．chimps immediately give up what they learned
D．chimps pick up what they discovered

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热门试题

单项选择题

Chimps and humans' motivation to conform to a group norm is ______.

A．material
B．social
C．trained
D．learned

单项选择题

How did Andrew Whiten and his colleagues study the chimpanzees' behaviour

A．Through training chimps.
B．Through comparing three groups of chimps.
C．Through trapping.
D．Through controlling three groups of chimps.