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htxt=htxt+"<tr><td height=\"25\">『资料评论』&nbsp;&nbsp;<a href=\"/file_review.asp?id=30323785\" 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'>100.00%</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;□ <font color=red><b>[好评]</b></font>23．（12分）有4种含有铝元素的化合物A、B、C、D，且能发生下列反应①A＋NaOH→D＋H2O　②BA＋H2O　③C＋NaOHB＋NaCl　④ 在①溶液中滴入盐酸后有沉淀生成，盐酸过量沉淀又溶解生成C。则A、B、C、D的化学式分别是A_______、B_______、C_______、D_______。写出以上①③离子反应方程式：①_______________________</td>";
htxt=htxt+"<td width=\"20%\" align=\"right\" valign=\"top\" >yihaojinyu <1-18 23:27></td>";
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