单项选择题

According to the writer, long queues at counters are caused by ______.

A．difficulties in recruiting staff
B．inadequate staffing arrangements
C．staff being made redundant
D．lack of cooperation staff
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单项选择题
What makes e-mail extremely popular on campus is most likely its ______.
A．chance to revive the almost lost art of letter writing
B．freedom from face-to-face confrontation or pressure to respond
C．global quality for one to contact people half a world away
D．liberation from such restraints as time and locality
单项选择题
The virtue of e-mailing on the campus is to ______.
A．build up a personal archive
B．broaden the horizons of the students
C．facilitate rapid and easy interaction
D．see video pictures on the students' workstations
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