单项选择题

Consider the universal cannibalism of the sea, all of whose creatures ______ one another.

A．hide from
B．ferret out
C．prey on
D．compete against
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单项选择题
Some customs travel well. Often, however, behavior that is considered the epitome of at home is perceived as impossibily rude or, at the least, harmlessly bizarre abroad.
A．novelty
B．eccentricity
C．urbanity
D．tolerance
单项选择题
The new machine failed to ______ the garbage. As a result, the kitchen was filled to bursting with smelly leftovers.
A．expand
B．compact
C．produce
D．criticize
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