单选

An IP ( ) is a unique number the computer uses to identify itself, and to be identified over a network.

  • A.address
  • B.device
  • C.point
  • D.data
参考答案
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A PC is a general purpose tool built around a ( ) .

  • A.display
  • B.microprocessor
  • C.mouse
  • D.keyboard

Once processed, the( )is shown to the user.

  • A.program
  • B.memory
  • C.information
  • D.CPU
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