单项选择题

Which of the following can best sum up the passage

A．Media Selection in Managing Information Resources.
B．The Importance and Necessity of Media Conversion.
C．Three Categories of Information Media.
D．Various Means of Communicating Information.

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单项选择题

A) A language lab and videos. B) Video and tape recorders. C) Computers and recorders. E) A language lab and computers.

单项选择题

The main idea of the last paragraph is that ______.

A．paper record is the most convenient medium for later reference
B．electronic mail costs less than postage to mail paper memos
C．different media for information may be selected for different purposes
D．by using different media, a firm can create various information for its objectives