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.
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填空题
In the early 1950s, largely because of ______, many institutions of higher learning adopted regulations requiring loyalty oaths from university teachers.
单项选择题
A．No one can do the translating.B．The new secretary can type the document.C．The woman should do the work herself.D．The secretary might be able to help the woman.
A．No one can do the translating.
B．The new secretary can type the document.
C．The woman should do the work herself.
D．The secretary might be able to help the woman.
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