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<head>
<meta charset="UTF-8">
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<title>列表标签</title>
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<ol>
<li>item1</li>
<li>item2</li>
<li>item3</li>
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<ul>
<li>西游记
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<ol>
<li>
<a href="https://baike.baidu.com/item/%E5%AD%99%E6%82%9F%E7%A9%BA/5576?fr=aladdin">孙悟空</a>
</li>
<li>猪八戒</li>
</ol>
</li>
</ul>
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