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                      "content": "课件版$$quad$$$$quad$$$$quad$$1、用例说明：（1）优化原因：教研用vpn访问不到远程的cdn<br>  （2）优化方法：mathjax.js从远程cdn引入改为引入服务器的js<br>  （3）用例重点：测试公式预览效果，包括：添加页、编辑页、查看页、列表页<br>\n2、测试数据：<br>\n（1）长公式\n对于不等式组$$\\begin{cases} \\frac{1}{2}x-1\\leqslant 7-\\frac{3}{2}x \\\\ 5x+2&gt;3\\left( x-1 \\right) \\\\\\end{cases}$$下列说法正确的是（　　）  <br>\n\n$$\\Delta h\\frac{{{\\rho }_{\\text{酒}}}{{h}_{\\text{酒}}}-{{\\rho }_{\\text{水}}}{{h}_{\\text{水}}}}{{{\\rho }_{\\text{水}}}-{{\\rho }_{\\text{酒}}}}=\\frac{0.8\\times {{10}^{3}}\\text{kg/}{{\\text{m}}^{\\text{3}}}\\times 0.3\\text{m}-1.0\\times {{10}^{3}}\\text{kg/}{{\\text{m}}^{\\text{3}}}\\times 0.2\\text{m}}{1.0\\times {{10}^{3}}\\text{kg/}{{\\text{m}}^{\\text{3}}}-0.8\\times {{10}^{3}}\\text{kg/}{{\\text{m}}^{\\text{3}}}}=0.2\\text{m}$$<br>\n\n（2）已知X、Y、Z三种金属能发生下列反应:\n$$\\text{X+}{{\\text{H}}_{\\text{2}}}\\text{S}{{\\text{O}}_{\\text{4}}}\\!=\\!=\\!=\\text{XS}{{\\text{O}}_{\\text{4}}}\\text{+}{{\\text{H}}_{\\text{2}}}\\uparrow $$，<br>\n$$\\text{Y+Z}\\text{(N}{{\\text{O}}_{\\text{3}}}){{}_{\\text{2}}}\\!=\\!=\\!=\\text{Y}\\text{(N}{{\\text{O}}_{\\text{3}}}){{}_{\\text{2}}}\\text{+Z}$$，\n$$\\text{Z+X}\\text{(N}{{\\text{O}}_{\\text{3}}}){{}_{\\text{2}}}\\!=\\!=\\!=\\text{Z}\\text{(N}{{\\text{O}}_{\\text{3}}}){{}_{\\text{2}}}\\text{+X}$$，\n则X、Y、Z三种金属与氢的活动性由强到弱的顺序为(　　)<br>\n（3）ubb标签<br>\n（3.1）下划线：<u>各种ubb标签</u>,的看法建设的客观的广阔的\n空格：国际快乐的歌看到过的<span class=\"test_blank\" style=\"width: 1.56rem; display: inline-block; border-bottom: 0.01rem solid;\">&nbsp;</span><span class=\"test_blank\" style=\"width: 1.2rem; display: inline-block; border-bottom: 0.01rem solid;\">&nbsp;</span><span class=\"test_blank\" style=\"width: 0.6rem; display: inline-block; border-bottom: 0.01rem solid;\">&nbsp;</span>,<br>（3.2）斜体：<i>此处是斜体变量</i>，<br>\n（3.3）加粗：<b>变量</b><br>\n（3.4）公式：：$$\\text{CaO}(\\text{CaC}{{\\text{O}}_{\\text{3}}})$$--加入足量的水溶解.过滤.蒸发结晶<br>\n（3.5）破折号————：液体压强的大小可以用$$p=\\rho gh$$计算，<br>\n（3.6）特殊函数：此处有分数--$$p=\\frac{F}{S}$$计算。<br>\n（3.7）中文°<br>\n（3.8）图片:[img=1.png],[img=1.jpg],不同的格式[img=2.jpg][img=10.png]<br>\n（3.9）波浪线：<span class=\"wave\" style=\"background: url(&quot;data:image/png;base64,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&quot;) center bottom repeat-x rgba(0, 0, 0, 0); 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