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.
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单项选择题
In this passage, the sentence actions speak louder than words means ______.
A．what you do is more important than what you say
B．what you say is more important than what you do
C．what you say influences your children more than what you do
D．what you do influences your children more than what you say
单项选择题
Children should be surrounded with other kind and caring people because ______.
A．they can be taken good care of by such people
B．they can learn to be caring from such people
C．they can get encouragement from such people
D．they can be part of such people
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