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    【题目】下面哪个不是算法的特征（ ）

    A.抽象性 B.精确性 C.有穷性 D.唯一性

    【答案】D

    【解析】根据算法的概念，可知算法具有抽象性、精确性、有穷性等，同一问题，可以有不同的算法，故选D．

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