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8年级数学：想求不等式正整数解有几个，画出数轴，结果一目了然
本节的内容主要讲述的是8年级下册第4章的内容：一次函数，在本小节中涉及的是不等式的正整数解有几个；借助数轴求解
8年级数学：人教版下册章节复习，同步+培优，分层练习，查漏补缺13/61
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