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    A lot of technical problems have to be solved this new type of digital camera its appearance in market. A. when; makes B. until; will make C. before; makes D. after; will make 【查看更多】

     

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    A lot of technical problems have to be solved ______ this new type of digital camera _______its
    appearance in market.     
    [     ]
    A. when; makes  
    B. until; will make  
    C. before; makes  
    D. after; will make

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    A lot of technical problems have to be solved ______ this new type of digital camera _______its appearance in market.

     A. when; makes   B. until; will make   C. before; makes   D. after; will make

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