单项选择题

A．The two speakers are at a loss what to do.
B．The man is worried about his future.
C．The two speakers are seniors at college.
D．The woman regrets spending her time idly.
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单项选择题
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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
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