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    The online school uses a unique method that is fun yet to help you learn Chinese with the least amount of effort in the shortest amount of time. A. expensive B. complex C. effective D. comfortable 【查看更多】

     

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    The online school uses a unique method that is fun yet _______ to help you learn Chinese with the least amount of effort in the shortest amount of time.  

    A. expensive          B. complex            C. effective            D. comfortable  

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