高等教育 / 大学英语3
(单选题)
A sound scientific theory should be one that _ _ _ _ _ _ _ _ _ _ _ _
A、
works not only under one set of conditions at one time, but also under the same conditions at other times
B、
does not allow any changes even under different conditions
C、
can be used for many purposes
D、
leaves no room for improvement
A sound scientific theory should be one that _ _ _ _ _ _ _ _ _ _ _ _
A、
works not only under one set of conditions at one time, but also under the same conditions at other times
B、
does not allow any changes even under different conditions
C、
can be used for many purposes
D、
leaves no room for improvement
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