2011广东肇庆中考数学试题(附参考答案)

Followingpartsofordinaryboltconnection:wall-beams,purlins,knee.Designofdrainage,electrical,heating,ventilation,airconditioning,powershouldbesubjecttosafetyrequirementsforsteelstructuresofotherprofessions,itisforbiddentoweldhangingloadandincreasedroofandcolumns.ConstructionpreparedandtheconstructionlayoutfirstsectionmaterialpreparedandtheprocessingproductionpreparedaccordingtoZhejiangmorePalacesteellimitedandWuhanintelligentelevatorlimitedbysignedofcontractfileandtheInstituteprovidesofsteeldesignblueprint,IcompanyandtheOrganizationTechnologyDepartment,productiondepartment,procurementDepartment,biddoEngineeringDepartment,relatedproductionsectorfordrawingstriage,andaccordingtoownersrequirementstimelydesignoutproductionandtheprocessingdetailandforhasrelatedprofessionalsectorofstrictlytriage,specificworkprocessfollowing:Biddobidnotice→TechnologyDepartment→addupdo→procurementdepartment→productiondepartment→qualityDepartment→EngineeringDepartmentTechnologyDepartmentproductionandtheprocessingdetailproposedHou,byaddupdocoordinationthesectorofsupportingwork,andbyfigurelinebyvarieties,andspecifications,andqualityforclassified,andnotificationProcurementDepartmentformaterialofmarketsurveyandprocurement,byqualityDepartmentaccordingtobypurchasedmaterialofspecificationsvarietiesforqualityreviewandtest,notqualifiedofmaterialvarietiesandspecificationsstronglybanfortheengineeringinthe,Afterpassinginspectioninformedtheworkshopofproductionoftimberaccordingtostrictproductiondetailsofproduction,workshoporganizedbytheGeneralManagerbeforetheproductiontechnologyandsecuritysectortechnicalsafetytraining,safetyeducationcompanytostrictlythree-leveldisclosure,trainingofqualifiedpersonnelisstrictlyprohibitedtopostproduction,productionpersonnelmustbelistedtowork,youmusthavethecorrespondingcertificate.Roadworkersmusthavethecertificate,andregularassessmentsshouldbecarriedout,notaskilledoperatorpostsisstrictlyprohibited.Productionofvariousitemsofequipment,appliancesandother,non-professionalisstrictlyprohibitedactionsandstrictregulations,strongrewards,beeliminated.Productionlinesetonperson,title,responsibilities,andperformanceandsafetycomprehensiveassessment.Materialprocurementprocessstrictlyhandlingthe带领村民治理黄沙的谷文昌同志、发展蔬菜大棚种植技术的山东寿光王伯祥同志、“鞠躬尽瘁，死而后已”的焦裕禄同志，他们都是终其一生，以一颗赤诚的服务群众之心，带领村民脱贫致富。2011年广东省肇庆市中考数学试卷一、选择题（本大题共l0小题，每小题3分，共30分）1、（2011•肇庆）的倒数是（）A、2B、﹣2C、﹣D、考点：倒数。专题：计算题。分析：根据倒数的定义即可解答．解答：解：的倒数是2．故选A．点评：本题主要考查了倒数的定义，正确理解定义是解题的关键．2、（2011•肇庆）我国第六欢人口普查的结果表明，目前肇庆市的人口约为人，这个数用科学记教法表示为（）A、405×104B、40.5×105C、4.05×106D、4.05×107考点：科学记数法—表示较大的数。分析：科学记数法的表示形式为a×10n的形式，其中1≤|a|＜10，n为整数．确定n的值时，要看把原数变成a时，小数点移动了多少位，n的绝对值与小数点移动的位数相同．当原数绝对值＞1时，n是正数；当原数的绝对值＜1时，n是负数．解答：解：4050000=4.05×106，故选：C．点评：此题主要考查了科学记数法的表示方法．科学记数法的表示形式为a×10n的形式，其中1≤|a|＜10，n为整数，表示时关键要正确确定a的值以及n的值．3、（2011•肇庆）如图是一个几何体的实物图，则其主视图是（）A、B、C、D、考点：简单组合体的三视图。分析：找到从正面看所得到的图形即可．解答：解：从正面看可得到一个矩形和一个下底和矩形相邻的梯形的组合图，故选C．点评：本题考查了三视图的知识，主视图是从物体的正面看得到的视图．4、（2011•肇庆）方程组的解是（）A、B、C、D、考点：解二元一次方程组。专题：计算题。分析：此题运用加减消元法解方程组，由①+②先求出x，再代入求出y．解答：解：，①+②得：3x=6，x=2，Followingpartsofordinaryboltconnection:wall-beams,purlins,knee.Designofdrainage,electrical,heating,ventilation,airconditioning,powershouldbesubjecttosafetyrequirementsforsteelstructuresofotherprofessions,itisforbiddentoweldhangingloadandincreasedroofandcolumns.ConstructionpreparedandtheconstructionlayoutfirstsectionmaterialpreparedandtheprocessingproductionpreparedaccordingtoZhejiangmorePalacesteellimitedandWuhanintelligentelevatorlimitedbysignedofcontractfileandtheInstituteprovidesofsteeldesignblueprint,IcompanyandtheOrganizationTechnologyDepartment,productiondepartment,procurementDepartment,biddoEngineeringDepartment,relatedproductionsectorfordrawingstriage,andaccordingtoownersrequirementstimelydesignoutproductionandtheprocessingdetailandforhasrelatedprofessionalsectorofstrictlytriage,specificworkprocessfollowing:Biddobidnotice→TechnologyDepartment→addupdo→procurementdepartment→productiondepartment→qualityDepartment→EngineeringDepartmentTechnologyDepartmentproductionandtheprocessingdetailproposedHou,byaddupdocoordinationthesectorofsupportingwork,andbyfigurelinebyvarieties,andspecifications,andqualityforclassified,andnotificationProcurementDepartmentformaterialofmarketsurveyandprocurement,byqualityDepartmentaccordingtobypurchasedmaterialofspecificationsvarietiesforqualityreviewandtest,notqualifiedofmaterialvarietiesandspecificationsstronglybanfortheengineeringinthe,Afterpassinginspectioninformedtheworkshopofproductionoftimberaccordingtostrictproductiondetailsofproduction,workshoporganizedbytheGeneralManagerbeforetheproductiontechnologyandsecuritysectortechnicalsafetytraining,safetyeducationcompanytostrictlythree-leveldisclosure,trainingofqualifiedpersonnelisstrictlyprohibitedtopostproduction,productionpersonnelmustbelistedtowork,youmusthavethecorrespondingcertificate.Roadworkersmusthavethecertificate,andregularassessmentsshouldbecarriedout,notaskilledoperatorpostsisstrictlyprohibited.Productionofvariousitemsofequipment,appliancesandother,non-professionalisstrictlypro