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    It was the largest experiment we had ever had; it six hours. A. ended B. finished C. prolonged D. lasted 【查看更多】

     

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    It was the largest experiment we had ever had; it _____ six hours.

    　　A. ended  B. finished  C. prolonged  D. lasted

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     It was the largest experiment we had ever had; it _____ six hours.

    　　A. ended  B. finished  C. prolonged  D. lasted

    查看答案和解析>>


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