HtmlAgilityPack应用

Question

我用webbrowser开发一个小程序
想获取网页的image标签
下面是HTML代码：
<table cellspacing="1" cellpadding="0" width="960" align="center" bgcolor="#000000" border="0">
    <tbody>
      <tr>
        <td valign="top" width="170" bgcolor="#ffffff" rowspan="2"></td>
        <td align="center" width="790" bgcolor="#ffffff">
        <table style="font-size: 12px" height="560" cellspacing="0" cellpadding="0" width="100%" align="center" border="0">
          <tbody>
            <tr>
              <td style="font-size: 12px; color: #333333; font-family: 宋体" align="center" width="81%" colspan="5" rowspan="5"><img src="http://www.hittime.co.uk/images/DHgate/Text.gif" alt="" /><br />
                <img src="http://www.hittime.co.uk/images/others/erji/koss-plug/koss-plug-0.jpg" name="mi" width="520" height="446" id="mi" /></td>
              <td style="font-size: 12px; color: #333333; font-family: 宋体" align="center" width="81%"><a onmouseover="document.mi.src=document.p1.src" href="javascript:;"><img src="http://www.hittime.co.uk/images/others/erji/koss-plug/koss-plug-0.jpg" name="p1" width="120" height="103" border="0" id="p1" /></a></td>
            </tr>
            <tr>
              <td style="font-size: 12px; color: #333333; font-family: 宋体" align="center" width="81%"><a onmouseover="document.mi.src=document.p2.src" href="javascript:;"><img src="http://www.hittime.co.uk/images/others/erji/koss-plug/koss-plug-1.jpg" name="p2" width="120" height="103" border="0" id="p2" /></a></td>
            </tr>
            <tr>
              <td style="font-size: 12px; color: #333333; font-family: 宋体" align="center" width="81%"><a onmouseover="document.mi.src=document.p3.src" href="javascript:;"><img src="http://www.hittime.co.uk/images/others/erji/koss-plug/koss-plug-2.jpg" name="p3" width="120" height="103" border="0" id="p3" /></a></td>
            </tr>
            <tr>
              <td style="font-size: 12px; color: #333333; font-family: 宋体" align="center" width="81%"><a onmouseover="document.mi.src=document.p4.src" href="javascript:;"><img src="http://www.hittime.co.uk/images/others/erji/koss-plug/koss-plug-3.jpg" name="p4" width="120" height="103" border="0" id="p4" /></a></td>
            </tr>
            <tr>
              <td style="font-size: 12px; color: #333333; font-family: 宋体" align="center" width="81%"><a onmouseover="document.mi.src=document.p5.src" href="javascript:;"><img src="http://www.hittime.co.uk/images/others/erji/koss-plug/koss-plug-4.jpg" alt="" name="p5" width="120" height="103" border="0" id="p5" /></a></td>
            </tr>
          </tbody>
        </table>
        </td>
      </tr>
      <tr>
        <td bgcolor="#ffffff">
        <table cellspacing="0" cellpadding="0" width="780" align="center" border="0">
          <tbody>
            <tr>
              <td><p class="STYLE1" > KOSS PLUG Isolation Earphone Headphone Earbuds for iPod MP3</p>
                <p class="STYLE2" >Features:</p>
                <ul class="wenzi">
                  <li>Unique KOSS Earbud Design</li>
                  <li>Dynamic Element for Extended Frequency Response</li>
                  <li>Unique Ear Bud Design Directs Sound into the Ear Canal for Deep Bass and Extended Frequency Performance</li>
                  <li>Specialty Ear Cushion Material Forms to Fit in Your Ear Canal to Deliver a Better Fit and Noise Isolation</li>
                  <li>Includes an Extra Sets of Replacement Ear Cushions</li>
                </ul>
                <p class="STYLE2">Specifications:</p>
                <ul class="wenzi">
                      <li>Distortion: &lt;0.3%</li>
                  <li>Impedance: 16 ohms</li>
                  <li>Sensitivity: 112dB SPL/1mW</li>
                  <li>Frequency Response: 10-20,000 Hz</li>
                  <li>Cord: Straight - Dual Entry - 4 ft.</li>
                </ul></td>
            </tr>
          </tbody>
        </table></td>
      </tr>
    </tbody>
  </table>我在vs里写了这样一句代码：
HtmlNodeCollection nodeList = document.DocumentNode.SelectNodes(@"//body/table/tbody/tr/td/table/tbody/tr/td");
这么写可以得到表格里的标签？如果不能，请附上您的代码，不胜感激！！