我要评论<!doctype html public "-//w3c//dtd xhtml 1.0 strict//en""http://www.w3.org/tr/xhtml1/dtd/xhtml1-strict.dtd">
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td.alt {
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html>body td{ font-size:11px;}
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<table id="mytable" cellspacing="0" summary="the technical specifications of the apple powermac g5 series">
<caption> </caption>
<tr>
<th scope="col" abbr="configurations" class="nobg">configurations</th>
<th scope="col" abbr="dual 1.8">dual 1.8ghz</th>
<th scope="col" abbr="dual 2">dual 2ghz</th>
<th scope="col" abbr="dual 2.5">dual 2.5ghz</th>
</tr>
<tr>
<th scope="row" abbr="model" class="spec">lipeng</th>
<td>m9454ll/a</td>
<td>m9455ll/a</td>
<td>m9457ll/a</td>
</tr>
<tr>
<th scope="row" abbr="g5 processor" class="specalt">mapabc</th>
<td class="alt">dual 1.8ghz powerpc g5</td>
<td class="alt">dual 2ghz powerpc g5</td>
<td class="alt">dual 2.5ghz powerpc g5</td>
</tr>
<tr>
<th scope="row" abbr="frontside bus" class="spec">地图名片</th>
<td>900mhz per processor</td>
<td>1ghz per processor</td>
<td>1.25ghz per processor</td>
</tr>
<tr>
<th scope="row" abbr="l2 cache" class="specalt">图秀卡</th>
<td class="alt">512k per processor</td>
<td class="alt">512k per processor</td>
<td class="alt">512k per processor</td>
</tr>
</table>
</body>
</html>
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