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
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单项选择题
According to Papousek, the pleasure babies get in achieving something is a reflection of ______.
A．a basic human desire to understand and control the world
B．the satisfaction of certain physiological needs
C．their strong desire to solve complex problems
D．a fundamental human urge to display their learned skills
单项选择题
If a consumer wants a quick settlement of his problem, it’s better to complain to ______.
A．a shop assistant
B．the store manager
C．the manufacturer
D．a public organization
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