单项选择题

There ought to be less anxiety over the perceived risk of getting cancer than ________________ in the public mind today.

A．exists
B．exist
C．existing
D． existed
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单项选择题
The farmers were more anxious for rain than the people in the city because they had more at（）.

A． danger
B． stake
C． loss
D． threat
单项选择题
it's usually the case that people seldom behave in a ____________way when in a furious state.
A． stable
B． rational
C． legal
D． credible
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