单项选择题

According to the author, research into the influence of geography and climate should______.

A．focus on some unknown aspects
B．go much deeper
C．be pursued on a larger scale
D．be carried out within a larger scope
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单项选择题
We can safely conclude that Dr. J. Von Neumann is a______.
A．mathematician
B．psychologist
C．computer expert
D．novelist
单项选择题
Which of the following is NOT TRUE according to the passage
A．Many outstanding men want to see whether machines can judge and think.
B．There are already in existence some computers that can understand logic.
C．Dr. J. Von Neumann proved that some computers are complicated enough to reproduce themselves.
D．Human brain is too complex and complicated to be copied with the present level of technology.
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