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<P>Dear David and Erik,</P>
<P> Thank you for your answers. I also find it by myself. Thank you very much.</P>
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<P>Xu yechun<BR><BR></P></DIV></div><br clear=all><hr>与联机的朋友进行交流，请使用 MSN Messenger: <a href='http://g.msn.com/1HM1CNCN/c144??PI=44281'>单击此处</a><br></html>