高一数学必修1函数综合试题

地形平坦开阔，地层由第四系全新冲积层，第四系上更新统冲层组成，局部表覆第四系全新统人工堆积层。第四系全新统冲积层厚度约25～50m，岩性主要为黏土、粉质黏土、粉土、粉砂、细砂；第四系上更新统冲积层厚度大于50m，岩性主要为黏性土、粉土、粉细砂等。管桩深度范围内地层主要为：粉土、黏土、粉质黏土，局部表层为杂填土。couplingCentreshallbechecked,thesecondpouredconcretestrengthofmorethan70%.Intheprocessofreamingorboring,apartfromthespecialprovisionsinfactory,doesnotallowanyworkthatmayaffectthecouplingCentre,suchasirrigation,tocylinderconnectionstofloodthecondenserpipesandsoon.Wellboring,hingeboltholeflangewithcouplingofvertical,notoblique.Mountingboltsshouldbeaddedlubricants,typinggentlywithasmallhammer,nottoolooseortootight,packedtheboltswiththecorrespondingsealscrewholeshouldbemarked.6.4.5.4.2couplingreamedandpairingsisclosetothediameterofboltbearinggoodhingeholes,dressedwithagoodtwocouplingboltsbeforeyoucanmovetherotor,boring-reamingholeinturn.Couplingboltsmustbetightcouplingissymmetricaldiameter,inboring,reaming,twoboltsout.Wellboring,hingeboltholeflangewithcouplingofvertical,notoblique.Duetothecouplingboltsinaccordancewithhingeholescorrespondingtothediameterofthescrewholesonebyoneafterprocessing,processingbackboltinstallationlocationcannotbechanged,soaccordingtoboltaftertheactualweightdifferenceofnutandlockwashertomatch.Generalrequirementsforcouplingtwosymmetricaldiameterbolt,nutandlockwasher'stotalweightdifferenceshouldnotbegreaterthan10gandknocksstampedmark.(SeeFigure18)Thecouplingboltsapplylubricant,andthengentlywithcopperhome,nottoolooseortootight.BoltAssemblyisfinished,symmetricaltighteningallboltsto30%,50%,70%,100%force,andcheckthecouplingflutterandbeforeconnectingthecirclegraduallychangesitsvalueshouldbelessthan0.02mm.Tighteningtorqueofthecouplingboltsshallcomplywiththetechnicalrequirementsmanufacturersdrawings,withadynamometricwrenchorlogtensiontools.Threewheelrotorswingtestcouplingconnectionsshouldbechecked:takingleave,函数单元测试一、选择题：(本题共12题，每小题5分，满分60分)1．若a、b、c∈R＋，则3a=4b=6c，则（）A．bac111B．bac122C．bac221D．bac2122．集合}5,4,3,2,1{},1,0,2{NM，映射NMf:，使任意Mx，都有)()(xxfxfx是奇数，则这样的映射共有（）A．60个B．45个C．27个D．11个3．已知()1axfxxa的反函数．．．f－1(x)的图像的对称中心是(—1，3)，则实数a等于（）A．2B．3C．－2D．－44．已知()|log|afxx，其中01a，则下列不等式成立的是（）A．11()(2)()43fffB．11(2)()()34fffC．11()()(2)43fffD．11()(2)()34fff5．函数f(x)=1x＋2(x≥1)的反函数是（）A．y=(x－2)2＋1(x∈R)B．x=(y－2)2＋1(x∈R)C．y=(x－2)2＋1(x≥2)D．y=(x－2)2＋1(x≥1)6．函数y=lg(x2－3x＋2)的定义域为F，y=lg(x－1)＋lg(x－2)的定义域为G，那么（）A．F∩G=B．F=GC．FGD．GF7．已知函数y=f(2x)的定义域是[－1，1]，则函数y=f(log2x)的定义域是（）A．(0，＋∞)B．(0，1)C．[1，2]D．[2，4]8．若25log3log3xx≥25log3log3yy，则（）A．xy≥0B．xy≥0C．xy≤0D．xy≤09．函数)),0[(2xcbxxy是单调函数的充要条件是（）A．0bB．0bC．0bD．0b地形平坦开阔，地层由第四系全新冲积层，第四系上更新统冲层组成，局部表覆第四系全新统人工堆积层。第四系全新统冲积层厚度约25～50m，岩性主要为黏土、粉质黏土、粉土、粉砂、细砂；第四系上更新统冲积层厚度大于50m，岩性主要为黏性土、粉土、粉细砂等。管桩深度范围内地层主要为：粉土、黏土、粉质黏土，局部表层为杂填土。couplingCentreshallbechecked,thesecondpouredconcretestrengthofmorethan70%.Intheprocessofreamingorboring,apartfromthespecialprovisionsinfactory,doesnotallowanyworkthatmayaffectthecouplingCentre,suchasirrigation,tocylinderconnectionstofloodthecondenserpipesandsoon.Wellboring,hingeboltholeflangewithcouplingofvertical,notoblique.Mountingboltsshouldbeaddedlubricants,typinggentlywithasmallhammer,nottoolooseortootight,packedtheboltswiththecorrespondingsealscrewholeshouldbemarked.6.4.5.4.2couplingreamedandpairingsisclosetothediameterofboltbearinggoodhingeholes,dressedwithagoodtwocouplingboltsbeforeyoucanmovetherotor,boring-reamingholeinturn.Couplingboltsmustbetightcouplingissymmetricaldiameter,inboring,reaming,twoboltsout.Wellboring,hingeboltholeflangewithcouplingofvertical,notoblique.Duetothecouplingboltsinaccordancewithhingeholescorrespondingtothediameterofthescrewholesonebyoneafterprocessing,processingbackboltinstallationlocationcannotbechanged,soaccordingtoboltaftertheactualweightdifferenceofnutandlockwashertomatch.Generalrequirementsforcouplingtwosymmetricaldiameterbolt,nutandlockwasher'stotalweightdifferenceshouldnotbegreaterthan10gandknocksstampedmark.(SeeFigure18)Thecouplingboltsapplylubricant,andthengentlywithcopperhome,nottoolooseortootight.BoltAssemblyisfinished,symmetricaltighteningallboltsto30%,50%,70%,100%force,andcheckthecouplingflutterandbeforeconnectingthecirclegraduallychangesitsvalueshouldbelessthan0.02mm.Tighteningtorqueofthecouplingboltsshallcomplywiththetechnicalrequirementsmanufacturersdrawings,withadynamometricwrenchorlogtensiontools.Threewheelrotorswingtestcouplingconnectionsshouldbechecked:takingleave,210．函数)2()(||)(xxxgxxf和的递增区间依次是（）A．]1,(],0,(B．),1[],0,(C．]1,(),,0[D),1[),,0[11．将进货单价为80元的商品按90元一个出售时，能卖出400个，根据经验，该商品若每个涨(降)1元，其销售量就减少(增加)20个，为获得最大利润，售价应定为（）A．92元B．94元C．95元D．88元12．某企业2002年的产值为125万元，计划从2003年起平均每年比上一年增长20%，问哪一年这个企业的产值可达到216万元（）A．2004年B．2005年C．2006年D．2007年二、填空题：(本题共4小题，每小题4分，满分16分)13．函数xxy12[),1((x]图象与其反函数图象的交点坐标为．14．若4log15a(0a且1)a，则a的取值范围是．15．lg25＋32lg8＋lg5·lg20＋lg22=．16．已知函数221)(xxxf，那么41)4(31)3(21)2()1(fffffff____________．三、解答题：(本题共6小题，满分74分)17．(本题满分12分)设A＝｛x∈R｜2≤x≤π｝，定义在集合A上的函数y=logax(a＞0，a≠1)的最大值比最小值大1，求a的值．18．(本题满分12分)已知f(x)=x2＋(2＋lga)x＋lgb，f(－1)=－2且f(x)≥2x恒成立，求a、b的值．地形平坦开阔，地层由