单项选择题

The direct reason for specialization is______.

A．the development in scientific activities
B．the growth of professionalisation
C．the expansion of scientific knowledge
D．the splitting up of academic societies

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单项选择题

The growth of specialization in the 19th century might be more clearly seen in sciences such as______.

A．sociology and linguistics
B．literature and psychology
C．linguistics and psychology
D．physics and chemistry