单项选择题

According to the passage, a complete conversion can take______.

A．several months
B．about a year
C．half a year
D．several years
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单项选择题
Without the support and leadership of management, the change to computerization will probably______.
A．take twice as long
B．cost a great deal
C．be unsuccessful
D．end up losing money
单项选择题
The author seems to feel that most companies______.
A．will be on computers within five years
B．lose money whenever the computers go down
C．have trouble making the conversion to computers
D．do not save money by using the computer
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