单项选择题

To define science we may simply call it ______.

A．the study of unrelated subjects
B．an attempt to explain natural phenomena
C．the study of unrelated fields
D．classified knowledge
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单项选择题
A scientist interested in adding to our general knowledge about oxygen would probably call his approach ______.
A．applied science
B．agriculture science
C．pure science
D．environmental science
单项选择题
Which of the following statements does the author imply
A．Scientists engaged in theoretical research should not be blamed for ignoring the practical side of their discoveries.
B．Today few people have any notions of the meaning of science.
C．In science, it is not difficult to distinguish fact from fiction.
D．Practical-minded people can understand the meaning and objectives of pure scienc
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