单项选择题

A．He is an experienced police officer.
B．He will quit his present job sooner or later.
C．He is a good supervisor.
D．He enjoys being a police officer.
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单项选择题
A．Growth of violence on TV.B．Destructive threat from nuclear explosives.C．Decreasing of moral standards.D．All of the above.
A．Growth of violence on TV.
B．Destructive threat from nuclear explosives.
C．Decreasing of moral standards.
D．All of the above.
填空题
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