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                <h1>直线夹角文件:</h1>
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                            <td><a class='down_stat doc_title' href="javascript:void(0);">直线的倾斜角和斜率</a></td>
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                                            <tr>
                            <td><a class='down_stat doc_title' href="javascript:void(0);">3.1直线的倾斜角与斜率1</a></td>
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                            <td><a class='down_stat doc_title' href="javascript:void(0);">直线、射线、线段</a></td>
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                                <button type="button" class="layui-btn downBtn" data-key="217602">立即下载</button>
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                                            <tr>
                            <td><a class='down_stat doc_title' href="javascript:void(0);">线段、射线、直线</a></td>
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                                <button type="button" class="layui-btn downBtn" data-key="201035">立即下载</button>
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                                            <tr>
                            <td><a class='down_stat doc_title' href="javascript:void(0);">直线、射线、线段</a></td>
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                                <button type="button" class="layui-btn downBtn" data-key="170156">立即下载</button>
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                            <td><a class='down_stat doc_title' href="javascript:void(0);">直线射线线段</a></td>
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                                            <tr>
                            <td><a class='down_stat doc_title' href="javascript:void(0);">直线、射线、线段</a></td>
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                                <button type="button" class="layui-btn downBtn" data-key="142585">立即下载</button>
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                                            <tr>
                            <td><a class='down_stat doc_title' href="javascript:void(0);">直线倾斜角与斜率－教学课件</a></td>
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                                            <tr>
                            <td><a class='down_stat doc_title' href="javascript:void(0);">直线的倾斜角与斜率－课件11</a></td>
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                                <button type="button" class="layui-btn downBtn" data-key="133451">立即下载</button>
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                                            <tr>
                            <td><a class='down_stat doc_title' href="javascript:void(0);">线段、射线、直线</a></td>
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                                            <tr>
                            <td><a class='down_stat doc_title' href="javascript:void(0);">直线射线线段</a></td>
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                                            <tr>
                            <td><a class='down_stat doc_title' href="javascript:void(0);">线段、射线和直线</a></td>
                            <td>
                                <button type="button" class="layui-btn downBtn" data-key="170150">立即下载</button>
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                                            <tr>
                            <td><a class='down_stat doc_title' href="javascript:void(0);">4.1 线段、射线、直线</a></td>
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                                            <tr>
                            <td><a class='down_stat doc_title' href="javascript:void(0);">线段、射线、直线</a></td>
                            <td>
                                <button type="button" class="layui-btn downBtn" data-key="170154">立即下载</button>
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                                            <tr>
                            <td><a class='down_stat doc_title' href="javascript:void(0);">4.1 线段、射线、直线</a></td>
                            <td>
                                <button type="button" class="layui-btn downBtn" data-key="201030">立即下载</button>
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                                            <tr>
                            <td><a class='down_stat doc_title' href="javascript:void(0);">6.1　线段、射线、直线(1)</a></td>
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                                            <tr>
                            <td><a class='down_stat doc_title' href="javascript:void(0);">6.1　线段、射线、直线(1)</a></td>
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                                            <tr>
                            <td><a class='down_stat doc_title' href="javascript:void(0);">线段、射线和直线</a></td>
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                            <td><a class='down_stat doc_title' href="javascript:void(0);">线段、射线、直线-教学课件</a></td>
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                            <td><a class='down_stat doc_title' href="javascript:void(0);">3.2直线、射线、线段张海生</a></td>
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                            <td><a class='down_stat doc_title' href="javascript:void(0);">线段、射线、直线-教学课件</a></td>
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                                            <tr>
                            <td><a class='down_stat doc_title' href="javascript:void(0);">3.2直线、射线、线段张海生</a></td>
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                                <button type="button" class="layui-btn downBtn" data-key="201032">立即下载</button>
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                                            <tr>
                            <td><a class='down_stat doc_title' href="javascript:void(0);">北师大版高中数学(必修2)2.1《直线与直线的方程》(直线的方程).ppt</a></td>
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                                            <tr>
                            <td><a class='down_stat doc_title' href="javascript:void(0);">3.2.1线段、射线、直线-教学课件</a></td>
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                                <button type="button" class="layui-btn downBtn" data-key="170140">立即下载</button>
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                            <td><a class='down_stat doc_title' href="javascript:void(0);">直线与直线的方程(第1课时)课件</a></td>
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                                            <tr>
                            <td><a class='down_stat doc_title' href="javascript:void(0);">7.2线段、射线和直线-PPT课件</a></td>
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                                <button type="button" class="layui-btn downBtn" data-key="201020">立即下载</button>
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                                            <tr>
                            <td><a class='down_stat doc_title' href="javascript:void(0);">4.2直线、射线、线段(1)教学课件</a></td>
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                                            <tr>
                            <td><a class='down_stat doc_title' href="javascript:void(0);">直线、射线、线段的大小比较</a></td>
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                                <button type="button" class="layui-btn downBtn" data-key="230282">立即下载</button>
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                                            <tr>
                            <td><a class='down_stat doc_title' href="javascript:void(0);">7.2线段、射线和直线-PPT课件</a></td>
                            <td>
                                <button type="button" class="layui-btn downBtn" data-key="170141">立即下载</button>
                            </td>
                        </tr>
                                            <tr>
                            <td><a class='down_stat doc_title' href="javascript:void(0);">3.2.1线段、射线、直线-教学课件</a></td>
                            <td>
                                <button type="button" class="layui-btn downBtn" data-key="201019">立即下载</button>
                            </td>
                        </tr>
                                            <tr>
                            <td><a class='down_stat doc_title' href="javascript:void(0);">4.2直线、射线、线段(1)教学课件</a></td>
                            <td>
                                <button type="button" class="layui-btn downBtn" data-key="142589">立即下载</button>
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                        </tr>
                                            <tr>
                            <td><a class='down_stat doc_title' href="javascript:void(0);">数学：直线、射线、线段-教学课件</a></td>
                            <td>
                                <button type="button" class="layui-btn downBtn" data-key="142584">立即下载</button>
                            </td>
                        </tr>
                                            <tr>
                            <td><a class='down_stat doc_title' href="javascript:void(0);">数学：直线、射线、线段-教学课件</a></td>
                            <td>
                                <button type="button" class="layui-btn downBtn" data-key="217601">立即下载</button>
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                                            <tr>
                            <td><a class='down_stat doc_title' href="javascript:void(0);">直线的方程、两直线的交点坐标与距离公式</a></td>
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                                <button type="button" class="layui-btn downBtn" data-key="133541">立即下载</button>
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                                            <tr>
                            <td><a class='down_stat doc_title' href="javascript:void(0);">6.1线段、射线、直线(2)课件(共15张PPT)</a></td>
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                                <button type="button" class="layui-btn downBtn" data-key="230264">立即下载</button>
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                        </tr>
                                            <tr>
                            <td><a class='down_stat doc_title' href="javascript:void(0);">数学：6.2线段射线直线-新课教学课件</a></td>
                            <td>
                                <button type="button" class="layui-btn downBtn" data-key="201010">立即下载</button>
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                                            <tr>
                            <td><a class='down_stat doc_title' href="javascript:void(0);">2018届高考文科数学知识点梳理复习课件8(第一节_直线的倾斜角与斜率、直线的方程)</a></td>
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                            <td><a class='down_stat doc_title' href="javascript:void(0);">必修2-第三章直线与方程-3.2.3直线的一般式方程</a></td>
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                            <td><a class='down_stat doc_title' href="javascript:void(0);">数学：6.2线段射线直线-新课教学课件</a></td>
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                                <button type="button" class="layui-btn downBtn" data-key="170131">立即下载</button>
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                            <td><a class='down_stat doc_title' href="javascript:void(0);">&sect;10.1直线的方程－课件</a></td>
                            <td>
                                <button type="button" class="layui-btn downBtn" data-key="212955">立即下载</button>
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                            <td><a class='down_stat doc_title' href="javascript:void(0);">&sect;10.1直线的方程－课件</a></td>
                            <td>
                                <button type="button" class="layui-btn downBtn" data-key="133418">立即下载</button>
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                                            <tr>
                            <td><a class='down_stat doc_title' href="javascript:void(0);">七年级数学上册《直线、射线、线段》第一课时</a></td>
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                                <button type="button" class="layui-btn downBtn" data-key="230283">立即下载</button>
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                                            <tr>
                            <td><a class='down_stat doc_title' href="javascript:void(0);">8.5直线、平面垂直的判定及性质课件</a></td>
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                                <button type="button" class="layui-btn downBtn" data-key="133375">立即下载</button>
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                                            <tr>
                            <td><a class='down_stat doc_title' href="javascript:void(0);">直线和圆的位置关系</a></td>
                            <td>
                                <button type="button" class="layui-btn downBtn" data-key="210363">立即下载</button>
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                            <td><a class='down_stat doc_title' href="javascript:void(0);">直线的方程－教学课件</a></td>
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                                <button type="button" class="layui-btn downBtn" data-key="212957">立即下载</button>
                            </td>
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                                            <tr>
                            <td><a class='down_stat doc_title' href="javascript:void(0);">直线的方程－教学课件</a></td>
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                                <button type="button" class="layui-btn downBtn" data-key="133420">立即下载</button>
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                            <td><a class='down_stat doc_title' href="javascript:void(0);">4.2直线、圆的位置关系</a></td>
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                            <td>
                                <button type="button" class="layui-btn downBtn" data-key="210361">立即下载</button>
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                            <td><a class='down_stat doc_title' href="javascript:void(0);">直线与方程-教学课件</a></td>
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                                <button type="button" class="layui-btn downBtn" data-key="212947">立即下载</button>
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                            <td><a class='down_stat doc_title' href="javascript:void(0);">湘教版七年级上4.2线段、射线、直线课件(共12张PPT)</a></td>
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                            <td><a class='down_stat doc_title' href="javascript:void(0);">《28.2.2.3利用方位角、坡度角解直角三角形》课件</a></td>
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                            <td><a class='down_stat doc_title' href="javascript:void(0);">直线与方程-教学课件</a></td>
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                                <button type="button" class="layui-btn downBtn" data-key="133410">立即下载</button>
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                                            <tr>
                            <td><a class='down_stat doc_title' href="javascript:void(0);">第五节空间直线方程</a></td>
                            <td>
                                <button type="button" class="layui-btn downBtn" data-key="212954">立即下载</button>
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                            <td><a class='down_stat doc_title' href="javascript:void(0);">直角的初步认识</a></td>
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                            <td><a class='down_stat doc_title' href="javascript:void(0);">第五节空间直线方程</a></td>
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                            <td><a class='down_stat doc_title' href="javascript:void(0);">第五节空间直线方程</a></td>
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                                <button type="button" class="layui-btn downBtn" data-key="133417">立即下载</button>
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                                            <tr>
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