单项选择题

Questions 11 to 13 are based on the following announcement. At the end of the announcement, you will be given 15 seconds to answer the questions.
Now, listen to the announcement.
The talk is mainly about ______.

A．computer lab services
B．college library facilities
C．the use of micro-computers
D．printouts from the laser printer
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单项选择题
In which case will the bank charge a fee
A．If the balance is below five hundred dollars.
B．If the interest rate varies.
C．If the customers open a new account.
D．If the customers want to check their account.
单项选择题
What is NOT mentioned as a factor contributing to insomnia
A．Resting frequently during the day.
B．Doing little exercise.
C．Sleeping late on weekends.
D．Having heart diseas
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