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<!-- bbs http://www.knowsky.com/bbs-->
<!--把如下代码加入到<head>区域中-->
<STYLE TYPE="text/css">
<!--
BODY {background-image: URL(http://www.knowsky.com/images/12090.gif);
background-position: center;
background-repeat: no-repeat;
background-attachment: fixed;}
-->
</STYLE>
