document.write ("<b>上一篇</b>：<a href='/DocHtml/699/2013/11/3/1299619334626.html'>探究欧姆定律</a><br><b>下一篇</b>：<a href='/DocHtml/699/2013/10/12/9632886534624.html'>《罗布泊，消逝的仙湖》教案</a>")