单项选择题

According to the passage, policemen spend most of their time and efforts______.

A．patrolling the street, rain or shine
B．tracking and arresting criminals
C．collecting and providing evidence
D．consulting the rules of law
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单项选择题
Good (Para. 3, Line 1) refers to the ants'______.
A．co-operation in working
B．sense of responsibility
C．efficiency in working
D．willingness to work hard
单项选择题
What is the most suitable word that describes the work of a policeman according to the passage
A．Dangerous.
B．Demanding.
C．Distressing.
D．Dramatic.
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