关于图象域的函数

  希望大家教教我

<title>中国地图站首页</title>
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      <p class="STYLE3">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;临</p>
      <p class="STYLE3">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;第</p>
      <p class="STYLE3">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;四</p>
      <p class="STYLE3">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;小</p>
      <p class="STYLE3">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;组</p>
      <p class="STYLE3">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;中</p>
      <p class="STYLE3">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;国</p>
      <p class="STYLE3">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;地</p>
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      <p class="STYLE3">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;网</p>
      <p class="STYLE3">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;站</p>
      <p class="STYLE3">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;。</p>
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    <td align="right" valign="top">&nbsp;</td>
    <td align="center" valign="top"><span class="STYLE5">&copy;T02第四小组制作<br />
      (刘帅,刘佳杰,刘敏,彭浩宇)</span></td>
    <td valign="top">&nbsp;</td>
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