单项选择题

A．To her Aunt Mary.
B．To her Aunt Agatha.
C．To her parents.
D．To her uncles.
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单项选择题
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单项选择题
Basic research is vital because _______.
A．it leads to results that can be appreciated
B．it is driven out by applied research
C．it provides the Basis for scientific progress
D．its results cannot be anticipated
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