document.write ("<b>上一篇</b>：<a href='/DocHtml/699/2014/2/23/1943280834642.html'>有理数的乘方</a><br><b>下一篇</b>：<a href='/DocHtml/699/2014/1/13/9960553834640.html'>Unit 11  Could you please tell me where the restrooms are?</a>")