单项选择题

A．The disadvantages of working in an office.
B．How using a computer can affect one’s eyes.
C．Why Tom needs to get glasses.
D．Research Tom has done for his chemistry paper.
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单项选择题
The federal government ______.
A．encourages basic research
B．devotes more than 90% of its research and development funds to applied research
C．spends far more on applied research than on military problems
D．opposes the Foundation's grants to basic research
单项选择题
Which of the title below best expresses the ideas of this passage
A．Roentgen's Ignorance of X-rays.
B．The Attractiveness of Applied Research.
C．The Importance of Basic Research.
D．Basic Research vs. Applied Research.
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