单项选择题

A．1992
B．1995
C．1999
D．2001
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单项选择题
A．To see how certain chemicals produce different flavors.B．To determine if a person can distinguish salty and sweet solutions.C．To map the location of taste buds.D．To count the number of taste buds.
A．To see how certain chemicals produce different flavors.
B．To determine if a person can distinguish salty and sweet solutions.
C．To map the location of taste buds.
D．To count the number of taste buds.
单项选择题
A．$8.80B．$ 0.88C．$10D．$5
A．$8.80
B．$ 0.88
C．$10
D．$5
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