单项选择题

According to Savage, the manager of 3M, videoconferencing is ______.

A．expensive in installing the system
B．efficient in saving employees for meetings
C．worthwhile by not sending employees for meetings
D．useful in changing boring meeting into exiting ones
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单项选择题
The characteristic of ASARDA in using videoconferencing is that ______.
A．it takes them 4 years to build the dynamic program
B．they spend significant money in installing the equipment
C．the desktop units make them have full control of multipoint needs
D．they have the latest software developed by other companies
单项选择题
We can infer from the text that the appearance of immortal life is ______.
A．a fading hope
B．far from certain
C．just an illusion
D．only a matter of time
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