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d.innerHTML = d.innerHTML + '<a class=\"download_word download_word_lb\" href=\"javascript:;\" id=\"vipdown\" onclick=\"showpay(2)\"><div class=\"download_card\"><div class=\"card_nr card_nr_lb\"><h4 class=\"card_bt\">分式的乘除法</h4><div class=\"download_card_msg\">问】1．分式的基本性质？2．分式的变号法则？【新课】数学小笑话：（配上漫画插图幻灯片）从前有个不学无术的富家子弟，有一次，父母出远门去办事，把他交给厨师照看，厨师问他：“我每天三餐每顿给你做两个馒头，够吗？”他哭丧着脸说：“不够，不够！”厨师又问：“那我就一天给你吃六个，怎么样？”他马上欣喜地说：“够了！够了！”问：这个富家子弟为什么会犯这样的错误？分数约分的方法及依据是什么？1．提出课题：分式可不可以约分？根据什么？怎样约分？约到何时为止？学生分组讨论，最终达成共识．2．教师小结：（1）约分的概念：把一。下面小编给大家分享分式的乘除法，希望能帮助到大家。 分式的乘除法文档下载网址链接：</div></div><div class=\"download_card_btn download_card_btn_lb\"><div class=\"content_box_tj\"><span>推荐度：</span><img src=\"/skin/zhann/images/icon_star.png\" alt=\"\">	<img src=\"/skin/zhann/images/icon_star.png\" alt=\"\">	<img src=\"/skin/zhann/images/icon_star.png\" alt=\"\">	<img src=\"/skin/zhann/images/icon_star.png\" alt=\"\"></div><div class=\"downlod_btn_right demo_tc downlod_btn_right_lb\"><em class=\"downlod_icon\"></em>点击下载文档<span>文档为doc格式</span></div> </div></div></a>';
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