单项选择题
According to the author, we should reverse our classification of the physical sciences as "hard" and the social sciences as "soft" because ______.
- A．a reverse ordering will help promote the development of the physical sciences
B．our knowledge of physical systems is more reliable than that of social systems
C．our understanding of the social systems is approximately correct
D．we are better able to investigate social phenomena than physical phenomena
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相关考题
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单项选择题
The chances of the physical sciences being subject to great changes are the biggest because ______.
A．contradictory theories keep emerging all the time
B．new information is constantly coming in
C．the direction of their development is difficult to predict
D．our knowledge of the physical world is inaccurate -
单项选择题
The word "paradox" ( Para. 1 ) means" ______ ".
A．implication
B．contradiction
C．interpretation
D．confusion -
单项选择题
We know less about the astronomical universe than we do about any social system because ______.
A．theories of its origin and history are varied
B．our knowledge of it is highly insecure
C．only a very. small sample of it has been observed
D．few scientists are involved in the study of astronomy
