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
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单项选择题
Which of the following statements may NOT be the main reason why Internet voting is growing rapidly
A．The civic affair enthusiasts take it as a way to increase voter turnout.
B．Some Internet lovers hope that Internet can change politics.
C．Some people can make profit from developing software for online voting.
D．An increasing number of states or cities are considering voting online to help promote Internet voting.
单项选择题
The babies would smile and bubble at the lights because ______.
A．the lights were directly related to some basic" drives"
B．the sight of the lights was interesting
C．they need not turn back to watch the lights
D．they succeeded in "switching on" the lights
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