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<title>W3Cschool(w3cschool.cn)</title>
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<summary>Copyright 1999-2011.</summary>
<p> - by Refsnes Data. All Rights Reserved.</p>
<p>All content and graphics on this web site are the property of the company Refsnes Data.</p>
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<p><b>注意：</b>目前，只有 Chrome 和 Safari 6 支持 details 标签。</p>
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