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  • 1. (2023七上·凉州期中) 将下列各数填入适当的括号内:

    .                     

    正数集合:{                                   …}   

    负数集合:{                                     …}

    整数集合:{                                   …}   

    分数集合:{                                     …}

    正整数集合:{                              …}     

    负整数集合:{                                 …}

    非负数集合:{                              …}     

    非正数集合:{                              …}.

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