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    21．This is our contribution to world of the 21th century, world of independence and mutual understanding. A. the; / B. /; a C. a; the D. the; a 【查看更多】

     

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    This is our contribution to ________ world of the 21th century, _____ world of independence and mutual understanding.

    　 A. the; /　 B. /; a　 C. a; the　 D. the; a

     

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