Which of the following statements is true of personal information systems？

A．Personal information systems that support a particular department are called workgroup information systems．

B．Adapting to changes in personal information systems is extremely difficult and time consuming．

C．Personal information systems have only a single user and so procedures are not documented or formalize

D．The solutions to problems in a personal information system usually involve more than one department．

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第1题

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第2题

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第3题

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第4题

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