数学七年级下《整式的乘除》复习测试题(答案)1

Collegestudentsvillageofficertwolearningexperiencesand11seriouslypracticeeducationtobecometheprimaryqualifiedvillagetherewouldbenonewChinawithouttheCommunistParty......yesterday'sshoutsstillreverberateintheearsoftherevolution.WhenIwaslittleIwasyoungpioneerswheneverytimeIhearasimilarsound,I'mexcited,deeplyimpressedbythoseCommunistrevolutionarymartyrspirit.Intheprocessofgrowingup,experiencedwarancestormasterisalsooftentoldmeabouthisstoryasasoldiershedtheirblood,letmefeelthematernalgrandparentsthenoblecharacterofAlexasaseniorpartymember.LittlebloodwasdeterminedtogrowinmyheartIwanttobelikehisgrandparentsAlex,soldiersonTV-like,growsuptobecomeasoldier,partymembersengagedinthegreatcauseofthemotherlandinthefuture.College,aftertirelesseffortsIglorytobecomeaCommunistPartyMember,becameamemberof87millionmembers.However,underthewashingofthepassageoftimeandinreallife,althoughhewasaCommunistPartyMember,buttoofarupfromtheolderpartymembers,theyhavespirit,thinking,consciousnessandcharacter,andnowme,orweareayoungpartythatseemstobemissingsomething.Nowasabasicmeansofcollegestudentsvillageofficer,AssistanttotheSecretaryoftheGeneralpartybranchandgrass-rootspartymembers,ismypartyrecently,whenthetwo,perhapsonmyown,orarealotlikeme,thinkingtherearesomeslack,atsomeindifferentontheidealandfaithofyoungpartymembers,isaverygoodchance.Becauseofthisstudy,isnolongerthecadrestolearnafewkey,butsomethingweall87millionCommunistPartymemberstojoin,andthelearningisnotashort-termfocusonlearning,butlong-termregularlearning.TakethisopportunitytospeakIwillcarefullystudythepartyConstitutionandpartyrules,series,strivingtobethequalifiedpartymembers,competentcollegestudentsvillageofficer.School-thecornerstone.Ideologicalbuildingisthekeytodowellineverything.Noidealsandbeliefs,idealsandbeliefsisnotdetermined,mentallycalcium,cartilage,therewillbemoreregulationoutofbounds,paomaodilouproblems.18ofthepartysincethePartyCentralCommitteecontinuedtopromotetheparty'sideologicalandpoliticalconstruction,whethertheeducationalpracticeofthemasslineoftheparty,orthethree-threespecialeducationpractices,arefromthementaleffort.Asagrass-rootspartymembers,ideologicallydeterminedisparticularlyimportant,soafterworkIwillconscientiouslyabidebythepartyConstitution,strengthenpartyspirit,beliefandfaith,besuretoalwaysmaintainahighdegreeofconsensuswiththePartyonthethoughtsandactions.Party,party,partyparty,partyparty,subjectedtoarmedsocialisttheorysystemwithChinesecharacteristics,guidingpracticetosupplementcalcium,andstrengthenthespiritofself-disciplineofthebase,pavethewayforpolitically.Parenhancingawareness,learntostandontheissues,ontheoverallsituationofthe一个陕北山沟沟里的小村庄，习近平在这里生活了七年之久，这也是少年到青年时期习近平一步一步迈过了各种困难，受过各种挫折，经历了各种坎坷，成长变的地方。把人生最美好时光奉献给了梁家河，把峥嵘岁月燃烧在了黄土地上，把不忘初心，砥砺奋进，整式的乘除试题一、选择（每题2分，共24分）1．下列计算正确的是（）．A．2x2·3x3=6x3B．2x2+3x3=5x5C．（－3x2）·（－3x2）=9x5D．54xn·25xm=12xmn2．一个多项式加上3y2－2y－5得到多项式5y3－4y－6，则原来的多项式为（）．A．5y3+3y2+2y－1B．5y3－3y2－2y－6C．5y3+3y2－2y－1D．5y3－3y2－2y－13．下列运算正确的是（）．A．a2·a3=a5B．（a2）3=a5C．a6÷a2=a3D．a6－a2=a44．下列运算中正确的是（）．A．12a+13a=15aB．3a2+2a3=5a5C．3x2y+4yx2=7D．－mn+mn=05．下列说法中正确的是（）．A．－13xy2是单项式B．xy2没有系数C．x－1是单项式D．0不是单项式二、填空（每题2分，共28分）6．－xy2的系数是______，次数是_______．7．一件夹克标价为a元，现按标价的7折出售，则实际售价用代数式表示为______．8．x_______=xn+1；（m+n）（______）=n2－m2；（a2）3·（a3）2=______．9．月球距离地球约为3.84×105千米，一架飞机速度为8×102千米/时，若坐飞机飞行这么远的距离需_________．10．a2+b2+________=（a+b）2a2+b2+_______=（a－b）2（a－b）2+______=（a+b）2Collegestudentsvillageofficertwolearningexperiencesand11seriouslypracticeeducationtobecometheprimaryqualifiedvillagetherewouldbenonewChinawithouttheCommunistParty......yesterday'sshoutsstillreverberateintheearsoftherevolution.WhenIwaslittleIwasyoungpioneerswheneverytimeIhearasimilarsound,I'mexcited,deeplyimpressedbythoseCommunistrevolutionarymartyrspirit.Intheprocessofgrowingup,experiencedwarancestormasterisalsooftentoldmeabouthisstoryasasoldiershedtheirblood,letmefeelthematernalgrandparentsthenoblecharacterofAlexasaseniorpartymember.LittlebloodwasdeterminedtogrowinmyheartIwanttobelikehisgrandparentsAlex,soldiersonTV-like,growsuptobecomeasoldier,partymembersengagedinthegreatcauseofthemotherlandinthefuture.College,aftertirelesseffortsIglorytobecomeaCommunistPartyMember,becameamemberof87millionmembers.However,underthewashingofthepassageoftimeandinreallife,althoughhewasaCommunistPartyMember,buttoofarupfromtheolderpartymembers,theyhavespirit,thinking,consciousnessandcharacter,andnowme,orweareayoungpartythatseemstobemissingsomething.Nowasabasicmeansofcollegestudentsvillageofficer,AssistanttotheSecretaryoftheGeneralpartybranchandgrass-rootspartymembers,ismypartyrecently,whenthetwo,perhapsonmyown,orarealotlikeme,thinkingtherearesomeslack,atsomeindifferentontheidealandfaithofyoungpartymembers,isaverygoodchance.Becauseofthisstudy,isnolongerthecadrestolearnafewkey,butsomethingweall87millionCommunistPartymemberstojoin,andthelearningisnotashort-termfocusonlearning,butlong-termregularlearning.TakethisopportunitytospeakIwillcarefullystudythepartyConstitutionandpartyrules,series,strivingtobethequalifiedpartymembers,co