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    In order to test how strong the tank was, the experts purposefully let the pressure inside continue to until it bursts A. come up B. rise up C. build up D. raise 【查看更多】

     

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    In order to test how strong the tank was, the experts purposefully let the pressure inside continue
    to _____ until it bursts.

    [     ]

    A. come up
    B. rise up
    C. build up
    D. raise

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    In order to test how strong the tank was, the experts purposefully let the pressure inside continue to ______until it bursts

         A. come up          B. rise up      C. build up       D. raise

    查看答案和解析>>


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