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
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
单项选择题
According to the passage, which of the following statements is TRUE
A．Going on computer may be the easiest job a remodeling contractor ever does.
B．Companies do not save money by using the computer.
C．The computer has revolutionized the company's ability to manage and innovate.
D．A contractor in Indiana has an annual business volume of more than $5 million.
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