急救！表格于表格之间有缝隙，请问如何解决

<td width="226" height="319"><img src="http://www.bluespace.cn/CF/images/bbmzl_5.jpg" width="226" height="319" /></td>

<td width="202" height="319"><img src="images/bbmzl_6.jpg" width="202" height="319" /></td>

</tr>

<tr>

<td height="119" colspan="4"><img src="http://www.bluespace.cn/CF/images/bbmzl_7.jpg" width="1023" height="119" /></td>

</tr>

</table>

<map name="Map" id="Map">

<area shape="rect" coords="321,37,371,64" href="http://www.bluespace.cn/CF/bbzt.html" />

<area shape="rect" coords="259,34,311,60" href="bbdd.html" />

<area shape="rect" coords="384,37,431,64" href="http://www.bluespace.cn/CF/bbzl.html" />

<area shape="rect" coords="606,38,655,63" href="bbbz1.html" />

<area shape="rect" coords="664,38,716,65" href="bbbz2.html" /><area shape="rect" coords="724,39,775,62" href="http://www.bluespace.cn/CF/bbbz3.html" />

</map>