单项选择题

In Dr. Baum's opinion, a true nature reserve should ______.

A．be far away from urban-crowdedness
B．prevent whatever tourists to visit
C．be regarded as a place where nature is protected
D．provide buildings for human activities

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热门试题

单项选择题

According to the passage, 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

单项选择题

Which of the following titles best summarises the main idea of the passage

A．Foundation Funds
B．The Importance of Basic Research
C．The Attractiveness of Applied Research
D．Basic Research vs. Applied Research