单项选择题

Although most birds have only a negligible sense of smell, they have ________ vision.

A．vigorous
B．exact
C．acute
D．vivid
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单项选择题
There is no reason they should limit how much vitamin you take, ________ they can limit how much water you drink.
A．much more than
B．no more than
C．no less than
D．any more than
单项选择题
A person who is dying of incurable cancer of the throat is in terrible pain, which can no longer be satisfactorily_______.
A．alleviated
B．diminished
C．abolished
D．radiated
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