系统软件和应用软件的相互关系是( )。

系统软件和应用软件的相互关系是( )。A.前者以后者为基础 B.后者以前者为基础 C.相互没有关系 D.相互支持

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下列(  )人员负责规定会计软件系统各类使用人员的操作权限。

下列(  )人员负责规定会计软件系统各类使用人员的操作权限。A.系统维护员 B.系统操作员 C.软件编程人员 D.电算主管

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Why are one-room schools in danger of disappearing?

Why are one-room schools in danger of disappearing?A.Because they all exist in o

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Which of the following can be presented as the picture of to

Which of the following can be presented as the picture of today's American famil

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请选择(15)处的最佳答案.

请选择(15)处的最佳答案.A.discuss B.decrease C.deform D.inform

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