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    Obama was elected president last year, who is first black president of U. S. A. A. /; a; the B. /; the; the C. the; a; / D. the; the; / 【查看更多】

     

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    Obama was elected ____ president last year, who is ______ first black president of _____ U.S.

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

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