单项选择题

A．He’’ll be speaking at the end of the meeting.
B．He was supposed to speak last night instead.
C．He suddenly decided not to speak.
D．He already spoke very briefly tonight.
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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
In the author’’ s eye, swimming may help you to feel much more alive.
A．Y
B．N
C．NG
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