单项选择题

The example of the invention of a microscope demonstrates that pure science______.

A．is not always as practical as applied science
B．necessarily comes after applied science
C．may cause a multitude of immediate result if properly made use of
D．necessarily emerges from applied science
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单项选择题
After reading the passage, we can learn the author intent to imply
A．in science, it is not difficult to tell fact from fiction______.
B．the meaning of science is so ambiguous that a few can catch on to its meaning and objectives
C．the fact that scientists ignored the practical side of their discoveries in theoretical research which should be introspected
D．practical-minded people can accurately explain the meaning and objectives of science as a whole
单项选择题
The word hypotheses (Line 3, Para. 2) can probably be replaced by______.
A．illusion
B．imagination
C．presumption
D．fabrication
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