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在括号内填入适当的多项式，使等式成立． 2a3b-4a2b2+2ab3=2ab（ ）
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已知一个多项式除以多项式a2+4a﹣3所得商式是2a+1余式为2a+8求这个多项式.
若－5a2＋4b2＝25a4－16b4则括号内应填入的多项式为__
在代数式中下列结论正确的是
有3个单项式，2个多项式
有4个单项式，2个多项式
有5个单项式，3个多项式
有7个整式
在括号内填入适当的整式使等式成立:=
下列判断错误的是
多项式5x2－2x＋4是二次三项式
单项式－a2b3c4的系数是－1，次数是9
式子m＋5，ab，－2，
都是代数式
多项式与多项式的和一定是多项式
在括号内填入适当的多项式使等式成立． 8x2y-12xy3=4xy
已知多项式﹣3m+m2减去多项式M.等于4m2﹣3m+2求多项式M..
多项式A.与多项式B.的和是﹣x+3x2多项式B.与多项式C.的和是3x+3x2那么多项式A.减去多
多项式2a2-4a+1与多项式-3a2+2a-5的差是.
在下列括号内填上适当的整式使等式成立.3m2n－mn2=mn
请在下面各个小题的括号上填上适当的数使等式成立 13/5=3*/5*=9/27/8=/483
在括号内填入适当的多项式使等式成立． 9m3+27m2=m+3
多项式
与多项式
的和是3x+x
2
，多项式B.与多项式
的和是﹣x+3x
2
，那么多项式A.减去多项式C.的差是 （ ） A.4x﹣2x
2
B.4x+2x
2
C.﹣4x+2x
2
4x
2
﹣2x
在括号内填入适当的多项式使等式成立． -15p4-25p3q=3p+5q
已知多项式x4-y+3xy-2xy2-5x3y3-1按要求解答下列问题1指出该多项式的项2该多项式的
在括号内填入适当的多项式使等式成立． -4ab-4b=-4b
一个多项式加上2x2﹣4x﹣3得﹣x2﹣3x则这个多项式为.
填上适当的多项式ab＋b2＋＿＿＿＿＝2ab－3b2
在下列各式中等号右边的括号前填入适当的单项式或正负号使等式左右两边相等.-8a2b-2ab+6b2
在括号内填入适当的多项式使等式成立． -x2+xy-xz=-x
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25分假如你是一名高二的学生名叫李华.请你就本校食堂存在的问题向校长写一封投诉信.内容包括: 1.投诉的原因; 2.投诉的具体问题2﹣3点; 3.提出合理的建议. 注意:1.词数100左右;开头和结尾已经给出不计入字数; 2.可以适当增加细节以使行文连贯. DearHeadmaster I'mLiHuaaSenior2student. SincerelyYours LiHua
30分OnemonthagoSarahboughtalipstick口红shehaddesired.It'snot1butitmadeherhappybecauseitwastheonethatshehadbeen2sinceshesawit.Everymorningwhenshe3hermakeupeverythingseemsbrandnewduetothislipstick.Itfeelslikethatthewholedayisfullof4.Sarahhaslongbeenaccustomedto5herselfthroughshopping.Andthisdesireformaterialpossession6hertoworkhard.Shefeels7aboutthis.Her8keepsgettingbetterallbecauseofthiskindofdesire.Buthermotherthinksquite9.Severaldaysagowhenhermothercametoknowthe10ofthelipsticktheykept11foralmostawholeday.Hermotherthoughtthatitwas12wrongtospendsomuchonsuchmeaninglessitemswhileSarahthoughthermotherwastotally13aboutit.WhatSarahdidn'tknowwasthathermotherhadoncebeenalittlegirlwhohad14inpovertyandstarvation.Thatlittlegirlcouldnotfindenoughclothesto15inwinter.Thatgirlneededtolearnhowtospendeverypenny16itweretwoinordertosurvive.It'sjust17thattwopeoplecan'tunderstandeachotherevenformotheranddaughterbecauseeverybody's18isdifferent.Trytobepatientwiththepeoplearoundyou.Trytogetto19them.Trytostandintheirshoes.Ifyoucannotlistentopeoplehowcanyou20themtolistentoyou1A.dear B.cheap C.famous D.handy2A.longingfor B.headingfor C.leavingfor D.payingfor3A.putsoff B.putsaway C.putson D.putsback4A.anxiety B.hate C.laughter D.hope5A.rewarding B.devoting C.adapting D.forgiving6A.warns B.persuades C.begs D.drives7A.cautious B.good C.stressed D.negative8A.career B.relationship C.life D.study9A.firmly B.differently C.logically D.obviously10A.quality B.brand C.material D.price11A.waiting B.quarreling C.shopping D.gossiping12A.probably B.approximately C.slightly D.completely13A.unreasonable B.uncomfortable C.enthusiastic D.curious14A.turnedup B.brokenup C.grownup D.keptup15A.wear B.sell C.exchange D.clean16A.eventhough B.incase C.asif D.sothat17A.unlikely B.necessary C.strange D.natural18A.experience B.knowledge C.character D.family19A.move B.forgive C.know D.copy20A.force B.expect C.order D.advise
10分假定英语课上老师要求同桌之间交换修改作文请你修改你同桌写的以下作文.文中共有10处语言错误每句中最多有两处.每处错误仅涉及一个单词的增加删除或修改. 增加:在缺词处加一个漏字符号∧并在其下面写出该加的词. 删除:把多余的词用斜线\划掉. 修改:在错的词下划一横线并在该词下面写出修改后的词. 注意: 1.每处错误及其修改均仅限一词; 2.只允许修改10处多者从第11处起不计分. I'vehadmanydreamssinceIwasachild.Nowmydreamistoopensacafe.Thoughitmayappearsimpleitrequiredalotofideasandefforts.WhatIwantisnotjustanordinarilycafebutaveryspecialone.IwantmycafehaveaspecialthemesuchaslikeTangDynasty.Inthecafecustomerswillenjoyyourselvesinthehistoricalenvironmentwhatiscreatedforthem.IfIsucceedinmanageoneIwillopenmore.Iwishtohaveachainofcafesinmanydifferentcity.Eachofmycafeswillhaveadifferentthemeandanuniquestyle.
10分Therehavebeenalotofcommentsrecentlysurrounding5Gthenextgenerationofwirelesstechnology.1Howmightitchangeourlives 5Gstandsforfifthgenerationmeaningthenextstepintheprogressionoftechnologytoreplacethecurrent4Gsystem.EarlierGsystemsweredesignedtoimprovemobilecommunicationoperations.Eachnewtechnologybroughtmajorimprovementsinspeedandgreatlyincreasednetworkcapacity容量.2.Itisexpectedtopermitmoreuserstodomorethingsatafasterrate. Howevertechnologyexpertssaythereisamajorwaythat5Gisdifferentfromtheearliersystems.3.ItwillaffectmanymoredevicesandindustriesthanotherGversions. 5Gwillhelpfuelfuturesmartcitiesbyconnectingsensornetworks.5Gisalsoexpectedtoconnectself﹣drivingcarsandsupportnewtechnologiesinvolvingvirtualreality虚拟现实.Higher5Gspeedscouldalsopermitdoctorstocommonlyperformremotemedicaloperations.Factoriesandbusinessescoulduse5Gtechnologytoincreaseautomationandimprovethecollectionofinformation. 4.Theincreaseddataflowacross5GnetworkswouldgiveInternetattackersalotmorepossibilitiestostealandmisusedata.Inadditionthewideruseofa5Gwirelessnetworkmeansanybreakdownofthesystemwouldhavemorewidespreadandsevereresults.Suchdifficultiescouldaffectpublicsafety.5oranetworkbreakdowncouldcauseself﹣drivingvehiclestocrash. A.Whyis5Gsopopular B.Whatisthistechnology C.Everycoinhastwosides D.Thenew5Gsystempromisesmoreofthesame E.Itwillmovebeyondmobilenetworktechnology F.Abreakdownof5Gnetworksmaycauseeconomiclosses G.Afailureduringadoctor'sremoteoperationcouldleadtodeath
1分WhathesaidmeandIwasataloss. A.confused B.amazed C.amused D.brightened
1分Thankstothisnewvaccine疫苗theUNhasmoretoolsinthebattletotheworldofoneofitsmostterrifyingdiseases.
1分Youngpeoplemaketheirparentsangrywiththeirchooseinclothesinentertainmentandinmusic.
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