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
The boy students in this school are nearly ______ as the girl students to say they intend to get a college degree in business.
A．as likely twice
B．likely as twice
C．as twice likely
D．twice as likely
单项选择题
While admitting that this forecast was ______ uncertain, the scientists warned against treating it as a cry wolf.
A．anyhow
B．somewhere
C．somewhat
D．anyway
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