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htxt=htxt+"<tr><td height=\"25\">『资料评论』&nbsp;&nbsp;<a href=\"/file_review.asp?id=30252239\" target=\"_blank\"><font color=blue>点击这里发表或查看更多评论</font></a> </td><td align=\"right\"><a href='javascript:void(0)' onclick='sendhp()'><img src='/images/hp.png'  width='16' height='16' border='0' align='absmiddle'></a>好评率：<span id='hpp'>-</span> <a href='javascript:void(0)' onclick='sendcp()'><img src='/images/cp.png' width='20' height='17' border='0' align='absmiddle'></a>差评率：<span id='cpp'>-</span></td></tr>"
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htxt=htxt+"<td width=\"80%\" class=\"txt\">&nbsp;□ ff</td>";
htxt=htxt+"<td width=\"20%\" align=\"right\" valign=\"top\" >zhengwei1298 <12-26 15:46></td>";
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htxt=htxt+"<td width=\"80%\" class=\"txt\">&nbsp;□ 1、了解化学反应中能量转化的原因，能说         出常见的能量转化形式。2、通过查阅资料说明能源是人类生存和发  展的重要基础，了解化学在解决能源危机中的重要作用。知道节约能源、提高能量利用效率的实际意义。3、能举例说明化学能与热能的相互转化，了解反应热和焓变的涵义，能用盖斯定律进行有关反应热的简单计算。4、体验化学能与电能相互转化的探究过程，了解原电池和电解池的工作原理，能写出</td>";
htxt=htxt+"<td width=\"20%\" align=\"right\" valign=\"top\" >quyujie00 <10-21 16:36></td>";
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