单项选择题

According to the author, ______.

A．paper is the best storage device
B．people have a choice of different information media
C．it is better to let the person responsible for information-resource management determine the medium
D．the manager should build an effective system by selecting a good combination of different media
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单项选择题
In the last sentence of the second paragraph, this matter refers to ______.
A．the fact that a scientist's religious views derive from his whole out look on life
B．the fact that some people believe in God while others do not
C．the disparity of thinking between scientists and people from other walks of life
D．the disparity in the religious conclusions drawn from the observation of natural phenomena
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
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