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16平方米= 平方分米 5公顷= 平方米 4200公顷= 平方千米 4700平方厘米= 平方分米.
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在横线上填上适当的数.5600000平方米=560公顷 8公顷=80000平方米32平方千米=320
有三块菜地面积分别是90000平方分米9000平方米和90000平方米菜地最接近1公顷
90000平方分米
9000平方米
90000平方米
在○里填上><或=500平方厘米○60平方分米80平方分米○1平方米100平方厘米○1平方分米3平方
1公顷= 平方米 200平方米= 平方分米.
填上适当的数. 5平方千米=公顷 9000公顷=平方千米 2500平方分米=平方米 30000
17平方分米=平方厘米 10000公顷=平方千米12平方千米=公顷 300平方厘米=平方分米4000
单位换算.0.5平方米= 平方分米 7.5米= 米 分米40毫升= 升
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解方程比例. 1χ﹣χ﹣=1 2=χ5.
把自己的拳头放在装满水的面盆中溢出的水的体积大于1毫升小于1升..
比例尺101表示图上长度是实际长度的10倍.
一杯糖水的含糖率是20%喝了一半剩下的糖水含糖率是.
Veryoftenwewillhavetospeaktoalargeaudience.Forexamplewemayneedtogiveatalkinwhichcasemostofuswillbeshyandembarrassed.Thereisno1forthis.Ifafewsimplerulesare2anyonecanspeakwellin3.Firstofallthetalkshouldbewell4.Inthiswaywe5agoodcommandofwhatwearegoingtosayand6upourconfidence.Byworkinghardwecangetsomenecessaryfactsorinformation7asaresultwefeelmuch8.Thereare9thingsweshouldknowwhenwearepreparingour10.Thefirstoneiswhatwearetryingtodoandwhatwewanttotellour11.Thesecondthingiswhoouraudiencewillbe.Ifwearetalkingto12ourtalkshouldbesimple.Ifwearespeakingtoadultsorolderpeoplewecanmakeit13ifnecessary.Thethirdthingweshouldknowisforhow14weshouldtalkand15weshouldmakesurethatwe16tothattime.Ithasbeen17thatthemain18ofanytalkisthatyour19shouldbringyouandtheaudiencetogether.Ifyoukeepthatinmindandspeakclearlyandhonestlyinan20manneryourspeechwillsurlybeasuccessfulone.1A.time B.room C.way D.need2A.studied B.decided C.followed D.permitted3A.home B.public C.silence D.order4A.prepared B.made C.listened D.spoken5A.reduce B.gain C.increase D.win6A.clear B.look C.build D.keep7A.wrong B.ready C.false D.useful8A.greater B.smarter C.cooler D.better9A.three B.four C.two D.many10A.talk B.plan C.class D.program11A.students B.teachers C.children D.audience12A.girls B.boys C.children D.babies13A.original B.complex C.exciting D.strong14A.long B.soon C.often D.far15A.so B.but C.then D.yet16A.lead B.take C.get D.stick17A.said B.expected C.explained D.caused18A.mistake B.purpose C.choice D.phrase19A.idiom B.impression C.idea D.imagination20A.confusing B.ordinary C.rude D.impressive
7.5999…保留两位小数是保留三位小数是.
一列火车从北京开往上海3小时行了全程的这时距中点还有40千米.这列火车平均每小时行千米.
Roadpolitenessisnotonlygoodmannersbutgoodsensetoo.Ittakesthemostcool﹣headedandgood﹣tempereddriverstoresistthetemptationtotakerevenge报复onuncivilizedbehavior.Ontheotherhandalittlepolitenessgoesalongwaytowardsreducingthetensionsofdriving.Afriendlynodorawaveofappreciationinresponsetoanactofpolitenesshelpstocreateanatmosphereofgoodwillandtolerancesonecessaryinmoderntrafficconditions.Butsuchappreciationofpolitenessistooraretoday.Manydriversnowadaysdon'tevenseemabletorecognizepolitenesswhentheyseeit.Howevermisplacedpolitenesscanbedangerous.Typicalexamplearethedriverswhobrakesviolentlytoallowacartocameoutofasidestreetatsomedangertofollowingtrafficorthemanwhowaveachildacrossazebracrossingintothepathofoncomingvehiclesthatmaybeunabletostopintime.Thesamegoesforencouragingoldladiestocrosstheroadwhereverandwhenevertheyliketo.Anexperienceddriverwhosemannersarefaultlesstoldmeitwouldhelpifmotoristslearnttomovecorrectlyintotrafficstreamsoneatatimewithoutcausingthetotalblockagesthatgiverisetobadtemper.Unfortunatelymodernmotoristscan'tevenlearntodriveletalonemasterthelessobviouspointsofdrivingperfectly.Yearsagotheexpertswarnedusthatanexplosionincar﹣ownershipwoulddemandalotmoregiveandtakefromallroadusers.It'shightimeforallofustotakethismessagetoheart.1Accordingtothepassagetheroleofpolitenesscan.A.helpuslearnabouttrafficrulesB.reducethepleasureofdrivingC.makeourlifehappierthanothers'D.resistthetemptationtotakerevengeonuncivilizedbehavior2By'goodsense'inthefirstparagraphthewritermeans.A.thedriver'sabilitytounderstandpolitenessandreactreasonablyB.thedriver'simmediateresponsetoterribleroadconditionsC.thedriver'sskillofcontrollinghisorhercarinextremesituationsD.thedriver'sabilityofdrivingsafelyintrafficjams3WhichofthefollowingisNOTmisplacedpoliteness?A.Thedriverletsoldladiescrosstheroadwhentheywantto.B.Thedriverresponsestoanactofpolitenessinafriendlyway.C.Thedriversuddenlystopstopermitacartocomefromasidestreet.D.Thedriverwavesachildacrossazebracrossingintothepathofdangerousoncomingvehicles.4Inthewriter'sopinion.A.stricttrafficregulationsarebadlyneededB.driversshouldapplyroadpolitenessproperlyC.rudedriversshouldbepunishedD.driversshouldavoidtrafficjams
3个笔筒平均每个笔筒有6支笔第1个笔筒里有6支笔第2个笔筒里有7支笔第3个笔筒里有支笔.
每块方砖面积和方砖的块数成反比例.判断对错
下面的长方形长12厘米宽2.5厘米把它分成两个长方形使两个长方形面积的比是13.
解比例3.750.25=x4 x=
甲乙两人合作加工2160个零件同时加工8小时完成.已知甲每小时加工120个零件乙每小时加工多少个零件列方程解答
一个等腰三角形的顶角是100°它的底角是
的倒数是的倒数是9的.
把一根长5米的绳子平均截成8段每段长度是米每段是这根绳子的.
计算组合图形的面积一般通过或的方法把它转化成基本图形后进行计算.
一个圆柱的侧面展开是一个正方形这个圆柱的底面半径和高的比是
文中共有10处语言错误每句中最多有两处.错误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.每处均仅限一词 2.只允许修改10处多者从第11处起不计分. ParentsfromtheUSAandChinaeducatetheirchildrenindifferentway.IntheUnitedStatesparentsusuallyencouragetheirchildrentodevelopmenttheirpotential.Theypayattentiontowhichtheirkidscandonotwhattheycan't.AsaresultUSboysandgirlshopetobeactorsathletesanddoctorsmanyevenwantedtobecomepresidentswhentheygrowup.USparentsoftenencouragetheirchildrentotakethepartinallkindsofactivitiesatschool.Theybelievethatjoinintheseactivitiescanmaketheirchildrenmature.Schoolworkisimportanttheythinkthatsocialskillsareimportantaswell.ThingsinChinaisdifferent.Chineseparentsoftentelltheirchildrentostudyhardlyandpassexams.Theythinkthatwithastudentstayingawayfromschoolbooksmeanswastingtime.
棋盒里有10颗棋子姐姐和妹妹玩拿棋子游戏.她们定的规则是两人轮流拿每次可以拿1﹣2颗谁拿到最后一颗棋就获胜.如果妹妹先拿她怎样拿才能保证一定获胜
ThisTeachingAssistantLevel3courseisdesignedforpeoplewhoeitherareorwishtobecomeateachingassistant.Teachingassistantscarryouttheirtasksunderthedirectionoftheclassteacher.Thisisafullysupportedhomestudycourseandthehelpisavailablewheneveryouneedit﹣eitheronlineoroverthephone.Thereisahugedemandforteachingassistantsaroundthecountrybutalsomanythousandsofapplicantsforthesepositions.HavingthisTeachingAssistantLevel3qualificationwillhelpyouhaveanobviousadvantageoverotherapplicants.OurLevel3TeachingAssistantcourseissimilartotheNVQNationalVocationalQualificationLevel3becauseitisanequivalent同等的leveloflearning.TheteachingassistantisabletocontributeinfourmainareasSupportingtheteacherSupportingthepupilSupportingtheschoolSupportingthecurriculumThesalaryateachingassistantisexpectedtoearnayearLondonfringe外围£16856﹣£26052OuterLondon£18789﹣£27992InnerLondon£19893﹣£29088RestofEnglandandWales£15817﹣£25016Thefeeandthetimeofenrolment入学Enrollforonlya£35deposit.TeachingAssistantLevel3isonly£345.Tohelpyouonyourwaytowardsachievingyourqualificationweareofferingallofourpotentialstudentsa£115reductionintheirenrolmentfeesforJune.Thenormalfeeforthiscourseis£460butforthismonthithasbeenreducedtoonly£345.Therehasneverbeenabettertimetostartlearningandtakethatfirststeptowardsabrighterfuture!100%moneybackguaranteeifyouarenotsatisfied.That'swhywe'llhappilygiveyouyourmoneybackonanycoursereturnedwithin7days.It'seasyforyoutoenrollnowbytelephone01223923913.Youcangetfreefriendlyhelpandadvicefrom900amto400pmonMondaytoFriday.Call01223923915.1HowcanpeoplestudythisTeachingAssistantLevel3course?A.Gotothenightschool.B.Gotothefull﹣timeschool.C.Studyathomeatanytime.D.Studyatweekendsorvacations.2What'stheteachingassistant'stask?A.Listeningtotheteacher'slectureallthetime.B.Onlyhelpingteacherspreparetheirlessons.C.Helpingpromoteeffectivelearningandteaching.D.Oftengivinglessonsinplaceoftheformalteacher.3Ifateacherassistantearns£28000ayearheprobablyworksin.A.downtownWalesB.thefringeofLondonC.outerLondonD.downtownLondon4HowmuchshouldyoupayinJuneifyouhavepaidthedeposit?A.£310B.£35C.£345D.£460
与1815能组成比例的一个比是
把一个底面半径是15厘米高是3厘米的圆柱形钢材熔铸成一个底面半径是12厘米的圆锥圆锥的高是多少厘米用方程解
小红买了5支铅笔和3支钢笔共用去12元每支钢笔3.5元每支铅笔多少元列方程解
=9÷=÷20=75%.
某实验小组设计了如图装置对焦炭还原二氧化硅的产物的成分进行探究. 已知PdCl2溶液可用于检验CO反应的化学方程式为CO+PdCl2+H2O═CO2+2HCl+Pd↓ 产生黑色金属钯粉末使溶液变浑浊. 1实验的主要步骤如下 ①点燃酒精喷灯②通入N2一段时间③检查装置的气密性④向A的硬质玻璃管中装入焦炭过量与二氧化硅混合物共mg 则正确的操作顺序是. 2实验时要通入足够长时间的N2其原因是. 3B装置的作用是. 4装置CD中所盛试剂为.均填序号 A.NaOH溶液PdCl2溶液 B.CaOH2溶液PdCl2溶液 C.PdCl2溶液CaOH2溶液 D.浓H2SO4溶液CaOH2溶液 5若装置C中溶液无明显现象而D中溶液变浑浊则A中反应的化学方程式为. 6有mg混合物置于A中充分反应后用足量的氢氧化钠将固体进行溶解收集到6.72L氢气已换算成标准状况则制备出硅的质量为g.
0.8和0.80表示的意义是一样的.判断对错
当长方形的宽和长相等时这个长方形就是正方形.判断对错
c=12.56分米圆的面积是
在一个腰长为6厘米的等腰三角形中一个底角与顶角的度数比是12这个三角形中最大的内角是度它的面积是平方厘米.
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