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．retrospect
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单项选择题
These areas rely on agriculture utmost______ , having few mineral resources and a minimum of industrial development.
A．respectively
B．incredibly
C．extraordinarily
D．exclusively
单项选择题
Almost every spectator was______ with the outcome of the basketball match.
A．thrilled
B．teased
C．tempted
D．transplanted
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