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<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>W3Cschool(w3cschool.cn)</title>
</head>
<body>
<h4>嵌套列表:</h4>
<ul>
<li>咖啡</li>
<li>茶
<li>红茶</li>
<li>绿茶</li>
</ul>
</li>
<li>牛奶</li>
</body>
</html>