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    8．Edison was the first scientist a modern research and development centre. A．built B．having built C．to built D．to be building 【查看更多】

     

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    Edison was the first scientist _________ a modern research and development centre．

    [　　]
    A．

    built

    B．

    having built

    C．

    to have built

    D．

    to be building

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