单项选择题

We can infer from the passage that______.

A．there is little difference between specialization and professionalisation
B．amateurs can compete with professionals in some areas of science
C．amateurs have national academic societies but no local ones
D．professionals welcome amateurs into the scientific community
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单项选择题
Which of the following is not the reason for the growth of specialization A) Accumulation of scientific knowledge. C) Convenience for future research. B) Easy handling of information. D) The development of communication.
A．Which of the following is not the reason for the growth of specialization
B．Accumulation of scientific knowledge.
C．Easy handling of information.
D．Convenience for future research.
E．The development of communication.
单项选择题
The direct reason for specialization is______. A) the development in scientific activities C) the expansion of scientific knowledge B) the growth of professionalisation D) the splitting up of academic societies
A．The direct reason for specialization is______.
B．the development in scientific activities
C．the growth of professionalisation
D．the expansion of scientific knowledge
E．the splitting up of academic societies
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