（2010o宁德）（1）乳酸亚铁片可用于治疗缺铁性贫血．如图为乳酸亚铁片说明上的部分文字．请仔细阅读后回答以下问题：
①乳酸亚铁中含有4种元素．
②乳酸亚铁中碳、铁两种元素的质量比为9：7（72：56）．
③服药时不能喝茶的原因是以免乳酸亚铁被鞣质沉淀等合理答案．
（2）下表是元素周期表的一部分，请你根据下表回答问题：
①钠的相对原子质量是22.99
②上表中，金属元素有5种．
③食盐的主要成分是NaCl（填化学式）．
（3）今年西南的持久旱灾牵动全国人民的心，灾区饮水安全成为人们关注的重要问题．请你应用以下资料及所学的化学知识，为灾区人民提供饮水安全常识．
【资料在线】我国生活饮用水的标准：
细菌学指标
水质无色无味
且澄清透明
pH6.5～8.5；总硬度＜250mg/L
（以碳酸钙计）；铜＜1.0mg/L；…等
细菌总数＜100个/dL等
①为了使灾区饮用水达到感官指标中的任意一项要求，可采用的净水方法有过滤（或蒸馏或吸附或沉淀等合理答案）（写出一种方法即可）．
②检验灾区某水样是硬水还是软水，常用的物质是肥皂水．
③漂白粉可用于饮用水的杀菌消毒，其有效成分是次氯酸钙&化学式为Ca（ClO）2，次氯酸钙可发生如下反应：Ca（ClO）2+X+H2O=CaCO3↓+2HClO，则X的化学式为CO2．
④爱护水资源，人人有责．作为中学生，在日常生活中，你的节水方法是洗脸水用来拖地板等合理答案（写出一种方法即可）．
解：（1）①根据乳酸亚铁的化学式，可知该物质由C、H、O、Fe四种元素组成；
②乳酸亚铁中碳、铁两种元素的质量比=（12×6）：56=9：7；
③根据标签中的注意事项可知，该药品中所含乳酸亚铁能与茶水形成沉淀而降低药效，因此服药时不能喝茶；
（2）根据元素周期表查出钠元素的相对原子质量为：24.31；根据化学元素汉字名称的偏旁可辨别元素的种类，金属元素名称一般有“金”字旁，由此可知表中，属于金属元素的有5种；氯化钠是食盐的主要成分，其化学式为：NaCl；
（3）常用的净水方法有：过滤或蒸馏或吸附或沉淀等；肥皂水可以检验水样是硬水还是软水；在化学反应中原子的种类和数目在化学反应前后都不变，因此可化学方程式推出X的化学式为CO2；在生活中节水措施有：首先，要树立惜水意识，开展水资源警示教育；其次，必须合理开发水资源，避免水资源破坏；第三，提高水资源利用率，减少水资源浪费；第四、进行水资源污染防治，实现水资源综合利用．节约用水人人有责，如刷牙用口杯接水；工业用水重复利用；洗衣水用来拖地后再冲厕所；园林采用喷灌浇水；生活污水集中处理后再利用等．
故答案为：
（1）①4；②9：7；③以免乳酸亚铁被鞣质沉淀；
（2）22.99；5；NaCl；
（3）过滤（或蒸馏或吸附或沉淀等合理答案）；肥皂水；CO2；洗脸水用来拖地板等合理答案．
（1）根据标签中所标明的物质的化学式，判断物质的组成元素，并利用相对原子质量计算组成元素的质量比；根据标签中注意事项，说明服药时不能喝茶的原因；
（2）根据元素周期表查出钠元素的相对原子质量；根据化学元素汉字名称的偏旁可辨别元素的种类，金属元素名称一般有“金”字旁，进行解答；生活中用到的很多种盐，在我们化学课本中经常提到，如做为调味品的食盐，其主要成分是氯化钠；
（3）根据净水的方法进行分析；肥皂水可以检验水样是硬水还是软水；利用质量守恒定律可求出X的化学式；根据节约用水的方法和措施进行分析解答．岳丘山大乐透第13128期：前区胆码16 30 32
作者：雨不停国
13128期大乐透预测：
前区胆码：16、30、32
后区胆码：02、06、09
前区杀号：01、06、09、14、18、20、26、27、31
后区杀号：01、04、08、10、11
第一位：03、04、08
第二位：11、13、15
第三位：16、21、22
第四位：23、29、30
第五位：30、32、35
单注推荐：
03，15，16，30，32
04，15，21，30，35
04，11，22，23，35
08，11，16，23，32
04，15，16，29，30
04，15，22，23，35
04，11，22，23，32
04，13，22，30，35
04，13，22，23，30
04，11，16，30，35
03，11，22，23，30
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昨天一大早，竞彩领域就传出大奖喜讯，接连两次爆出的十万大奖，让我站平台热闹...[]选择最近期数
超级大乐透前区号码分布图
序号期数前区号码一区二区三区四区五区六区七区奇偶区域分布0102030405060708091011121314151617181920212223242526272829303132333435奇偶一区二区三区四区五区六区七区
3017053&nbsp&nbsp&nbsp&nbsp&nbsp06&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp1920&nbsp22&nbsp&nbsp&nbsp26&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp14&nbsp1&nbsp211&nbsp
2917054&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp16&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp2930&nbsp3233&nbsp&nbsp23&nbsp&nbsp&nbsp1&nbsp22
2817055&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp1920&nbsp22&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp30&nbsp&nbsp33&nbsp&nbsp23&nbsp&nbsp&nbsp2111
271705601&nbsp&nbsp04&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp24&nbsp&nbsp27&nbsp&nbsp&nbsp&nbsp32&nbsp&nbsp&nbsp232&nbsp&nbsp&nbsp111
2617057&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp12&nbsp&nbsp&nbsp16&nbsp&nbsp19&nbsp&nbsp&nbsp2324&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp23&nbsp&nbsp122&nbsp&nbsp
2517058&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp14&nbsp&nbsp&nbsp18&nbsp2021&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp28&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp14&nbsp&nbsp1211&nbsp
2417059&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp08&nbsp&nbsp11&nbsp13&nbsp15&nbsp17&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp41&nbsp131&nbsp&nbsp&nbsp
2317060&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp09&nbsp&nbsp&nbsp&nbsp&nbsp15&nbsp&nbsp&nbsp&nbsp20&nbsp&nbsp&nbsp&nbsp&nbsp26&nbsp&nbsp&nbsp&nbsp31&nbsp&nbsp&nbsp&nbsp32&nbsp111&nbsp11
2217061&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp10&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp19&nbsp&nbsp&nbsp23&nbsp25&nbsp&nbsp&nbsp&nbsp30&nbsp&nbsp&nbsp&nbsp&nbsp32&nbsp1&nbsp121&nbsp
211706201&nbsp&nbsp04&nbsp06&nbsp08&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp28&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp1422&nbsp&nbsp&nbsp1&nbsp
2017063&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp18&nbsp&nbsp2122&nbsp24&nbsp&nbsp&nbsp&nbsp29&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp23&nbsp&nbsp1121&nbsp
191706401&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp08&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp20&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp27&nbsp&nbsp30&nbsp&nbsp&nbsp&nbsp&nbsp2311&nbsp1&nbsp2&nbsp
1817065&nbsp&nbsp&nbsp&nbsp05&nbsp&nbsp&nbsp&nbsp&nbsp1112&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp19&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp28&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp321&nbsp21&nbsp1&nbsp
1717066&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp11&nbsp&nbsp&nbsp15&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp23&nbsp&nbsp26&nbsp&nbsp&nbsp30&nbsp&nbsp&nbsp&nbsp&nbsp32&nbsp&nbsp2&nbsp12&nbsp
1617067&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp10&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp1718&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp32&nbsp&nbsp3523&nbsp1&nbsp2&nbsp&nbsp2
1517068&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp0708&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp19&nbsp&nbsp&nbsp&nbsp24&nbsp&nbsp27&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp32&nbsp2&nbsp111&nbsp
1417069&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp10&nbsp&nbsp&nbsp&nbsp&nbsp16&nbsp&nbsp&nbsp20&nbsp&nbsp23&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp32&nbsp&nbsp&nbsp14&nbsp1&nbsp21&nbsp1
1317070&nbsp&nbsp&nbsp&nbsp&nbsp06&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp16&nbsp18&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp26&nbsp&nbsp&nbsp30&nbsp&nbsp&nbsp&nbsp&nbsp05&nbsp1&nbsp2&nbsp2&nbsp
121707101&nbsp&nbsp04&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp11&nbsp&nbsp14&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp33&nbsp&nbsp322&nbsp2&nbsp&nbsp&nbsp1
111707201&nbsp03&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp29&nbsp&nbsp32&nbsp34&nbsp322&nbsp&nbsp&nbsp&nbsp12
1017073&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp07&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp18&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp28&nbsp&nbsp31&nbsp33&nbsp&nbsp32&nbsp1&nbsp1&nbsp12
917074&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp08&nbsp1011&nbsp13&nbsp&nbsp&nbsp17&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp32&nbsp221&nbsp&nbsp&nbsp
817075&nbsp&nbsp&nbsp&nbsp05&nbsp&nbsp&nbsp&nbsp&nbsp11&nbsp&nbsp&nbsp&nbsp16&nbsp18&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp35321&nbsp12&nbsp&nbsp1
717076&nbsp02&nbsp&nbsp&nbsp&nbsp07&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp25&nbsp&nbsp&nbsp&nbsp30&nbsp&nbsp&nbsp&nbsp353211&nbsp&nbsp111
61707701&nbsp0304&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp25&nbsp&nbsp&nbsp&nbsp&nbsp31&nbsp&nbsp&nbsp&nbsp413&nbsp&nbsp&nbsp1&nbsp1
517078&nbsp&nbsp&nbsp0405&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp27&nbsp&nbsp&nbsp31&nbsp&nbsp34&nbsp322&nbsp&nbsp&nbsp&nbsp12
41707901&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp17&nbsp19&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp3233&nbsp&nbsp411&nbsp&nbsp2&nbsp&nbsp2
317080&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp08&nbsp10&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp21&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp3031&nbsp&nbsp&nbsp&nbsp23&nbsp2&nbsp&nbsp111
217081&nbsp02&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp12&nbsp&nbsp15&nbsp&nbsp&nbsp&nbsp20&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp34&nbsp141&nbsp21&nbsp&nbsp1
117082&nbsp&nbsp&nbsp&nbsp05&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp13&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp2021&nbsp&nbsp&nbsp25&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp411&nbsp112&nbsp&nbsp
序号出现次数72254336156332454678434444443856533737720181930182322序号期 数0102030405060708091011121314151617181920212223242526272829303132333435奇偶一区二区三区四区五区六区七区
说明：超级大乐透前区号码开奖分布图是反映往期开奖号码出现位置展现图。有经验的老彩民会依据以往开奖号码分布以呈现出的样式，预测下期号码的分布。
本图不但对前区开奖号码分布进行排列,还对每一期的奇偶比,三区分布进行了统计,让彩民更好的进行分析。
注：本图所指的三个分别是：01-05为一区、06-10为二区、11-15为三区、16-20为四区、21-25为五区、26-30为六区、31-35为七区。【17082期中3+1】【17081期中二等奖】第17082期号码基本形态回顾：前区号码05 13 20 21 25，后区号码08 09前区：四区比1:2:2:0，大小比3:2，奇偶比4:1，和值84；后区：后区2 0路组合，奇偶比1:1，大小比2:0，跨度1。个人习惯将大乐透号码分为四个区间：1-10为一区；11-20为二区；21-30为三区；31-35为四区；根据每个区间的号码分布情况来判断出最新一期会出现几个空区，以便缩小选号范围。第17083期四分空区选号参考：一区（01-10）：上期开出1个号码05，该区近10期出现0次轮空走势，目前出号连续，根据近阶段分布来看，本期该区继续参考出号，参考出号1~2个，推荐：03 08 10。二区（11-20）：上期开出2个号码13 20，该区近10期出现4次轮空走势，近期整体上奖势头不稳，目前连续出号，根据近阶段分布来看，本期该区注意回补，推荐出号1~2个，参考：11 12 16 17。三区（21-30）：上期开出2个号码21 25，该区近10期出现4次轮空走势，近期整体上奖势头波动，目前隔期出号，根据近阶段分布来看，本期该区出号注意断档，参考出号0~1个，推荐参考：27 28。四区（31-35）：上期开出0个号码，该区近10期出现2次轮空走势，近期出号活跃。根据近阶段分布来看，新的一期该区仍需设防，参考出号1~2个，推荐参考：32 33 34。前区号码推荐（12码）：03 08 10 11 12 16 17 27 28 32 33 34前区号码缩水（8码）：08 10 11 12 16 17 33 34后区推荐：03 06 08 11单挑一注：10 12 17 33 34+08 11彩市有险，个人意见，谨慎参考！ 本文来源：网易彩票
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