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清水混凝土的配合比设计中，要针对当地水泥、砂石、外掺料及外加剂等原材料影响混凝土质量的多种因素进行分析，确定主要控制因素，并从经济性和使用要求综合考虑，优选出符合生产条件的最优方案组合。obstacles,correctingmisunderstandings,advocategoodcadrestyle.2,adheretothescientificdecision-makinganddemocraticdecision-makingdecision-makinglaw.Correctlyhandletoensurethatgovernmentdecreesandbasedontheactualcreativework,givingfullplaytosubjectiveinitiative,putanendtoimplementtheconferencemeeting,todocumenttheimplementationofdocumentsetc.Improvethescientificanddemocraticdecision-makingmechanism,improveandimplementthedecisiontosolicittheviewsofexperts,thepublichearingsystem.Improvetheimportantdecisionofriskassessmentmechanismandlegalreviewmechanism.3,topromoteteamunity.Upholdandimprovethesystemofannualpartybooktalkhearttoheart,mindandPartymembers,Partymemberstoexchangeeachothernotlessthan2times.Theimplementationofsoundteamdemocraticlifesystem,consolidateandenhancetheparty'smasslineeducationalpracticewillpromotetheachievementofthetopicofdemocraticlife,criticismandself-criticismnormalization,along-term.Adheretothepartyonthebasisoftheprincipleofunity,enhanceinternalcommunication,strengtheninternalsupervision,selfSleepmaintenanceteamcollectiveimageandauthority.(three)toensuretheexecutionisnotstrongordisguisedtoresistgovernmentdecreesissues.IndividualBureauleadershipteammemberslackoflearningpoliticaltheorysystem,notfromtheobjectivereality,notwiththeparty'sinterestsabovealltheprinciplestodealwithpersonalproblems.Inthespecificworksafetysupervisionintheexecutionisnotstrong,intheimplementationofthedecisiontodeploythediscount,makechoices,engageinwork,theimplementationoftheagreement,uncomfortableisnotperformed,openordisguisedtoresist,thelackofsubjectconsciousnessofthepartyorganization,thelackofresistinsocietyallkindsofbadhabitsandunwholesometendenciesofcourageGasandcourage.Suchastheliabilityinsuranceofsafeproductionwork,individualleadersthathavesomeonearrested,andnofunding,notintheglobalchessperspectivetothecountrysidetocarryoutdailyinspection,foundnoneofmybusinessacceptanceoftheresumptionofproductioninanarmchair,withapen,indifferent.Correctivemeasures:(LEDLeadership:LuoMingjun,rectificationtime:beforeSeptember25th,insistforalongtime)1,tostrengthenthesenseofresponsibility,worktosolvethelackofdecentoccupationexplainaway,conductproblems.Toestablishtheoverallconcept,eliminatedepartmentalism.Strictassessmentandaccountability,tosolvethespiritualslack,nianqingpazhong,statusquo,Toestablishandperfectthemuddlealongandotherissues.Bureaustaffconductworkregulations,standardizethebehaviorofpersonnel.2,strengthentheresponsibilitysystem.Oneisthein-depthstudyandimplementtheHunanprovincialPartyandgovernmentleadingcadresInterimProvisionsontheworksafetyofapairof(HunanOfficeissued2013No.专题一物质的组成、性质、分类和计量（A卷）一、选择题（每题5分，共50分）1.（2015·江淮十校4月联考·9）NA表示阿伏加德罗常数的值。下列判断正确的是A．常温常压下，17g氨气分子所含质子数为10NAB．1molCl2参加反应，转移电子数一定为2NA．C．常温常压下，22.4LCO2分子中含有2NA个σ键和2NA个π键D．1L0.01mol·L-1的Na2CO3溶液中含有0.01NA个CO32-2.（2015·北京西城区二模试卷·7）化学与生产、生活密切相关。下列叙述正确的是（）A．煤的干馏和煤的液化均是物理变化B．海水淡化的方法有蒸馏法、电渗析法等C．天然纤维和合成纤维的主要成分都是纤维素D．用活性炭为糖浆脱色和用次氯酸盐漂白纸浆的原理相同3.（2015·北京东城区高三综合练习二·7）下列叙述正确的是（）A．硅酸、氯化铁均为胶体B．醋酸、蔗糖均属于电解质C．水玻璃、氯水均为混合物D．氧化钙、氧化铝均为碱性氧化物4.（2015·龙岩市高中毕业班教学质量检查能力测试·6）下列过程属于物理变化的是（）A．平行光照射胶体产生丁达尔现象B．紫外线照射下，液态蛋白质凝固C．电解质溶液导电过程D．铁遇到冷的浓硝酸溶液发生钝化5.（2015·广东省肇庆市高考化学三模试卷·4）设NA代表阿伏加德罗常数的值，下列叙述正确的是（）A．1.00mol•L﹣1NaCl溶液中含有Na+的数目为NAB．常温常压下，6.4g由氧气和臭氧组成的混合物中含有的分子总数为0.2NAC．标准状况下，1.12LHCHO中C原子的数目为0.05NAD．在催化剂作用下，6.4gSO2与足量氧气反应生成SO3，转移电子数为0.2NA6.（2015·哈尔滨市第六中学模拟考试·8）分子式为C10H14的二取代芳烃，其可能的结构有（）A．3种B．6种C．9种D．10种7．（2015·哈尔滨市第六中学模拟考试·9）NA代表阿伏伽德罗常数。已知C2H4和C3H6的混合物的质量为ag，则该混合物（）清水混凝土的配合比设计中，要针对当地水泥、砂石、外掺料及外加剂等原材料影响混凝土质量的多种因素进行分析，确定主要控制因素，并从经济性和使用要求综合考虑，优选出符合生产条件的最优方案组合。obstacles,correctingmisunderstandings,advocategoodcadrestyle.2,adheretothescientificdecision-makinganddemocraticdecision-makingdecision-makinglaw.Correctlyhandletoensurethatgovernmentdecreesandbasedontheactualcreativework,givingfullplaytosubjectiveinitiative,putanendtoimplementtheconferencemeeting,todocumenttheimplementationofdocumentsetc.Improvethescientificanddemocraticdecision-makingmechanism,improveandimplementthedecisiontosolicittheviewsofexperts,thepublichearingsystem.Improvetheimportantdecisionofriskassessmentmechanismandlegalreviewmechanism.3,topromoteteamunity.Upholdandimprovethesystemofannualpartybooktalkhearttoheart,mindandPartymembers,Partymemberstoexchangeeachothernotlessthan2times.Theimplementationofsoundteamdemocraticlifesystem,consolidateandenhancetheparty'smasslineeducationalpracticewillpromotetheachievementofthetopicofdemocraticlife,criticismandself-criticismnormalization,along-term.Adheretothepartyonthebasisoftheprincipleofunity,enhanceinternalcommunication,strengtheninternalsupervision,selfSleepmaintenanceteamcollectiveimageandauthority.(three)toensuretheexecutionisnotstrongordisguisedtoresistgovernmentdecreesissues.IndividualBureauleadershipteammemberslackoflearningpoliticaltheorysystem,notfromtheobjectivereality,notwiththeparty'sinterestsabovealltheprinciplestodealwithpersonalproblems.Inthespecificworksafetysupervisionintheexecu