单项选择题

The first paragraph aims at telling the reader ______.

A．the importance of information resources management
B．the relationship between the medium and information
C．the great variety of media for holding information
D．the numerous resources of information
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单项选择题
The main idea of the last paragraph is that ______.
A．paper record is the most convenient medium or 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
单项选择题
What does Nera do for the preparation for becoming a secretary or a nurse
A．She is working in a nursery.
B．She is moving into her own apartment.
C．She is studying in a high school.
D．She is asking help from the father.
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