麻烦高手帮忙看看错误
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<ul id="nav">
<li>时代</li>
<li>进步</li>
<li>科技</li>
<li>人生豪迈</li>
<li>哈哈</li>
<li>
<a href="#" id="dis">分类++</a>
</li>
<li>呵呵</li>
<li>八卦无极</li>
<li>淘江湖</li>
</ul>
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