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    8．We were the most important scientific development of the century. A．seeing B．watching C．looking D．witnessing 答案:D 【查看更多】

     

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    We were________the most important scientific development of the century.
    [    ]
    A．seeing  
    B．watching
    C．looking  
    D．witnessing

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    We were ________ the most important scientific development of the century.

    A．seeing　 　　　　 B．watching

    C．looking　 　　 D．witnessing

     

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