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    2．The world in the past several decades into one where knowledge is now the engine for socio-economic development. A. transformed B. has transformed C. has been transformed D. had been transformed 【查看更多】

     

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    The world 　　　 in the past several decades into one where knowledge is now the engine for socio-economic development.

    　 A. transformed　　　　　　　　　　　　　　　　　　　　　 B. has been transformed

    C. has transformed D. had been transforming

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