单项选择题

The first paragraph aims to tell the reader ______.

A．the importance of information-resource 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

For effective management of information resources, the manager should ______.

A．convert all paper documents to electronic media
B．make media conversion when necessary
C．control the media used to generate information both inside and out side his organization
D．use one format in processing information