单项选择题

Who did the man get a present from

A．The woman.
B．Jack.
C．John.
D．The man.
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单项选择题
In Papousek's experiment babies make learned movements of the head in order to ______.
A．have the lights turned on
B．be rewarded with milk
C．please their parents
D．be praised
单项选择题
According to the author, babies learn to do things which ______.
A．are directly related to pleasure
B．will meet their physical needs
C．will bring them a feeling of success
D．will satisfy their curiosity
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