单项选择题

The passage tells us that any new knowledge will have a powerful influence on ordinary people if______.

A．it is simple and understandable
B．it is advocated by eminent persons
C．it has been put into practice and proven true
D．it has something to do with their immediate concerns
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单项选择题
In the last paragraph, the author suggests more work on ______
A．the brain structure as a whole
B．the differences between men and women
C．the functioning of parts of the brain
D．the effects of the trunk line
单项选择题
It can be inferred from the passage that mothers who were influenced by Freudian ideas tended to be______.
A．critical of prolonged maternal care of the infants
B．tolerant of their babies' thumb-sucking habits
C．aware of the importance of weaning infants early
D．tired of picking their babies up the minute they cried
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