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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单项选择题

Less developed countries ______.

A．spend little on research
B．realize that progress depends on basic research
C．encourage their career scientists to experiment
D．devote less than 7% of their scientific budget to basic research