单项选择题

Human behavior is mostly a product of learning, whereas the behavior of an animal depends mainly on________.

A．consciousness
B．impulse
C．instinct
D．response
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单项选择题
Despite the changes that had taken place in the structure of the empire and in the political, economic, and social patterns of Great Britain, royalty continued to hold its unique and________ place in the minds and hearts of the British.
A．manifest
B．imperative
C．lofty
D．obedient
单项选择题
Some children display an ________curiosity about every new thing they encounter.
A．incredible
B．infectious
C．incompatible
D．inaccessible
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