单项选择题

The family was too ________to evacuate the house when the flood began.

A．obstinate
B．sturdy
C．determined
D．optical
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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
单项选择题
A beautiful autumn day like this ________for the wet summer we have had.
A．compensates
B．revenges
C．balances
D．compels
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