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    Just as the value of a telephone network increases with each new phone to the system, so does the value of a computer system increase with each program that turns out. A. adding B. to have added C. to add D. added 【查看更多】

     

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    Just as the value of a telephone network increases with each new phone ________ to the system, so does the value of a computer system increase with each program that turns out．


    1. A.
      adding
    2. B.
      to have added
    3. C.
      to add
    4. D.
      added

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    Just as the value of a telephone network increases with each new phone ________ to the system, so does the value of a computer system increase with each program that turns out．

    [　　]

    A．adding

    B．to have added

    C．to add

    D．added

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    Just as the value of a telephone network increases with each new phone _________ to the system, so does the value of a computer system increase with each program that turns out．

    [　　]
    A．

    adding

    B．

    to have added

    C．

    to add

    D．

    added

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