大神改版后的四六级总分如何用正则表达式获取（旧版的小弟我会获取）

<table border="0" align="center" cellpadding="0" cellspacing="6" class="cetTable">
	<tr>
		<th>姓名：</th>
		<td>赵阳</td>
	</tr>
	<tr>
		<th>学校：</th>
		<td>长春中医药大学</td>
	</tr>
	<tr>
		<th>考试类别：</th>
		<td>英语四级</td>
	</tr>
	<tr>
		<th>准考证号：</th>
		<td>220090132112529</td>
	</tr>
	<tr>
		<th>考试时间：</th>
		<td>2013年12月</td>
	</tr>
	<tr>
		<th valign="top">总分：</th>
		<td valign="top" class="fontBold">
        <span class="colorRed">
		
			0
		
        </span>
		
        	<br /><span class="color666">听力：</span>
			
				000
			
            <br /><span class="color666">阅读：</span>
			
			000
			
			
            <br /><span class="color666">写作与翻译：</span>
			
			000
			
		</td>
	</tr>
</table>

$a = curl_exec($ch);
			$match="#<td>(.*)</td>#";
			//$match="#<span>(.*)</span>#";
preg_match_all($match,$a,$b);
$yourname= $b[1][0];
$school= $b[1][1];
$cet= $b[1][2];
$c= $b[1][5];//分数
$score=strip_tags($c);
$score=str_replace("&nbsp;","",$score);  
		return array('school'=>$school,'name'=>$yourname,'cet'=>$cet,'score'=>$score);

$a =<<< TXT
<table border="0" align="center" cellpadding="0" cellspacing="6" class="cetTable">
    <tr>
        <th>姓名：</th>
        <td>赵阳</td>
    </tr>
    <tr>
        <th>学校：</th>
        <td>长春中医药大学</td>
    </tr>
    <tr>
        <th>考试类别：</th>
        <td>英语四级</td>
    </tr>
    <tr>
        <th>准考证号：</th>
        <td>220090132112529</td>
    </tr>
    <tr>
        <th>考试时间：</th>
        <td>2013年12月</td>
    </tr>
    <tr>
        <th valign="top">总分：</th>
        <td valign="top" class="fontBold">
        <span class="colorRed">
         
            0
         
        </span>
         
            <br /><span class="color666">听力：</span>
             
                000
             
            <br /><span class="color666">阅读：</span>
             
            000
             
             
            <br /><span class="color666">写作与翻译：</span>
             
            000
             
        </td>
    </tr>
</table>
TXT;
$match="#<t[hd].*?>(.*?)</t[hd]>#is";
preg_match_all($match,$a,$b);
$b[1][11] = preg_replace('/\s/', '', strip_tags($b[1][11]));
print_r($b[1]);