单项选择题

According to the author, when young families are isolated, ______.

A．old people can easily accept the change
B．people can move from place to place
C．individuals can hardly become innovative
D．economy develops at high speed

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热门试题

单项选择题

According to the author, the concept of aggression ______.

A．is hard to define because it has been used by various disciplines
B．covers both deplorable and necessary behaviors
C．should be dropped altogether
D．should be better expressed by a different term

单项选择题

This passage is probably taken from an article on ______.

A．man's brutalities upon man
B．definition of aggression
C．aggression underlying human behaviors
D．man's drive to master the external world