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d.innerHTML = d.innerHTML + '<a class=\"download_word download_word_lb\" href=\"javascript:;\" id=\"vipdown\" onclick=\"showpay(1)\"><em></em>下载文档(未登录)小学数学分数乘法知识点描述：分数表示一个数是另一个数的几分之几，或一个事件与所有事件的比例。把单位“1”平均分成若干份，表示这样的一份或几份的数叫分数。分子在上，分母在下。下面是小编整理的小学数学分数乘法知识点，仅供参考希望能够帮助到大家。小学数学分数乘法知识点(一)</a>';
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