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    There is still a long way to go to solve all the problems conservation of natural resources. A. concerning B. concerned C. concerning about D. concerned about 【查看更多】

     

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    There is still a long way to go to solve all the problems ______ conservation of natural resources.
    [     ]
    A. concerning
    B. concerned
    C. concerning about
    D. concerned about

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    （2010·江苏如东高级中学高三国庆假期自主练习一） 13. There is still a long way to go to solve all the problems ____ conservation of natural resources.

    A. concerning        B. concerned                

    C. concerning about       D. concerned about

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