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    about this computer program, a huge amount of time and energy would have been saved. A. Had I known B. If I knew C. If I should know D. Would I know 【查看更多】

     

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    ________ about this computer program, a huge amount of time and energy would have been saved.（ ）

    A. Had I known　　 B. If I knew　　 C. If I should know　 D. Would I know

     

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    . Had I known about this computer program, a huge amount of time and energy __ .  

         A. would have been saved                          B. had been saved

         C. will be saved                                  D. was saved

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    Had I known about this computer program, a huge amount of time and energy       .

    A．would have been savedB．had been saved
    C．will be savedD．was saved

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    Had I known about this computer program, a huge amount of time and energy________.

    A．would have been saved　　B．had been saved
    C．will be saved D．was saved

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    Had I known about this computer program, a huge amount of time and energy       .

    A．would have been savedB．had been saved
    C．will be savedD．was saved

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