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    If you feel tired and sick of fatty foods, that is you have to go to the hospital for a medical examination. A. why B. when C. whether D. what 【查看更多】

     

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    If you feel tired and sick of fatty foods, that is ________ you have to go to the hospital for a medical examination．

    [　　]

    A．why

    B．when

    C．whether

    D．what

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