单项选择题

Which of the following functions of the computer is NOT mentioned in the passage

A．Handling information,
B．Doing office and business work.
C．Offering entertainment.
D．Making phone calls.
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单项选择题
We may infer that the fastest way for the computer to send messages to others is by using ______.
A．paper
B．discs
C．the Internet
D．air mail
单项选择题
According to the author the disadvantage of using paper to keep and send information is that ______.
A．it is hard to get enough paper
B．it wastes our time
C．it damages the environment
D．there is too much paper around
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