单项选择题

Bertrand Russell's notion about electricity is ______.

A．disapproved of by most modem scientists
B．in agreement with Aristotle's theory of self - evident principles
C．in agreement with scientific investigation directed toward "how" things happen
D．in agreement with scientific investigation directed toward "why" things happen
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单项选择题
Modern science came into being ______.
A．when the method of controlled experiment was first introduced
B．when Galileo succeeded in explaining how things happen
C．when Aristotelian scientists tried to explain why things happen
D．when scientists were able to acquire an understanding of reality by reasoning
单项选择题
The aim of controlled scientific experiments is ______.
A．to explain why things happen
B．to explain how things happen
C．to describe self- evident principles
D．to support Aristotelian science
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