单项选择题

What is the main idea of this text

A．Social science is unified.
B．Social science is a newborn science.
C．What is social science.
D．Specialization in social science is not good.
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单项选择题
We can infer from the text that ______.
A．social science is a united science, and cannot be divided into subfields
B．social science may be further divided into smaller parts as the amount of knowledge and information expanding
C．there may be a Renaissance Man in the future
D．the best way to deal with the expansion of information is to know everything
单项选择题
What does the underlined word exponentially mean in the last paragraph
A．Promisingly.
B．Continuously.
C．Drastically.
D．Rapidly.
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