Al-AgO电池可用作水下动力电源,其原理如图所示。该电池反应的化学方程式为:2Al+3AgO+2NaOH=2...
问题详情:Al-AgO电池可用作水下动力电源,其原理如图所示。该电池反应的化学方程式为:2Al+3AgO+2NaOH=2NaAlO2+3Ag+H2O,则下列说法正确的是A.当电极上析出0.54gAg时,电路中转移的电子为0.01molB.该隔膜是阳离子交换膜C.Al电极的反...
问题详情:Al-AgO电池可用作水下动力电源,其原理如图所示。该电池反应的化学方程式为:2Al+3AgO+2NaOH=2NaAlO2+3Ag+H2O,则下列说法正确的是A.当电极上析出0.54gAg时,电路中转移的电子为0.01molB.该隔膜是阳离子交换膜C.Al电极的反...
问题详情:—Canyoudrawpictures? —No,Ican’isvery . icult 【回答】C知识点:相似相近词比较题型:选择题...
Elevenyearsago!Fivethousandyearsago,Twentyyearsago?Threeyearsago,myideal--"Ithappenedtwentyyearsago.GandalfdiscoveredSauronyearsago.Thatwastwentyyearsago.Itstartedyearsandyearsago.Thedeathoccurredman...
Howlongagowasthis?Long,longagotherelivedaking.Butthatwaslongago.Itistoolongago.No.Wegotmarriednotlongago.Thisworldcameintobeinglongago.Theareawasfannedoutlongago.Butthattimepassedlongago.Hunterspeople...
1、Isawhersometimeago.2、Ifinishedmydraftsometimeago.3、HeleftNewYorksometimeago.4、Henotes:"Weabolisheddebtors'prisonssometimeago."5、Idevelopedselpgforacustomersometimeago.6、Hesworetohavingseent...
Ihaveansweredyourfirstquestionashortwhileago.BrigidahadseenDetawalkingupthefootpathashortwhileagoandsoontheyguessedwhathadhappened.Duringtherainyseason,theriverbedofShiluRiverhaswidenedalot.Theriverfl...
问题详情:It’safineday.Whatabout tothepark? g go【回答】C知识点:构词法题型:选择题...
Infact,Paulsayshehasmoreenergyandvitalitythanhediddecadesago.Thiswordwasnotfamiliartothepeoplesomedecadesago.However,twodecadesagotherewasnothinglikethecurrentglobalcreditcrunch.Butintheearlyspringthr...
No.Wegotmarriednotlongago.Iwentbacktherenotlongago.ShestartedanewbusinessinPhoenixnotlongago.Butnotlongago,hebecameabusdriver,andhedidnotregretit.Thischickwasbornnotlongago,andisnotevenabletowalkstead...
LegendhasitthattheDragonBoatFestivaloriginatedlonglongago.不是所有童话故事都能从longlongago走到foreverlove.Theinscriptionsonthebronzetripodcanhardlyberecognized,sinceitwasmadealonglongago.TheMagicPang...
1、Well,thatwasalongtimeago.2、Theylivedalongtimeago.3、Thatisalongtimeago,sweetheart.4、Thefirsttimewasalongtimeago!5、Connie:alongtimeago.Toolongagotoremember.Itcouldbefun.6、Honey,'should'diedalo...
问题详情:TheGreensdecided forawalkinthepark. A.go B.togo C.going D.goes【回答】B知识点:动词和动词短语题型:选择题...
问题详情:____rightatFirstStreet,thebankis_____theleft. A.Go,on B.Turn,in C.Turn,on 【回答】C知识点:相似相近词比较题型:选择题...
问题详情:I wonder how long ago the accident _____. A. takes place B. have taken place C. had taken place D. took place【回答】D知识点:一般过去时及其被动式题...
问题详情:Twenty years ago, I drove a taxi for a living.Onenight I wenttopickupa passengerat2:30AM.When I arrivedtocollect, I foundthebuildingwasdarkexcept for a singlelightin a gro...
Ionlygothere2minutesago.Theplanelandedtenminutesago.Ijustspoketohimfifteenminutesago!Justfiveminutesago,theyreceivedthenotificationfromNewYorkandlistedthenumber.Lisa:Buttheylookliketheywereshinedjustf...
问题详情:I was a teacher at a kindergarten three years ago in the city of Atlanta.One day, a little boy ranfast on the playground. Then I saw him 1 to a little girl and sh...
问题详情:A letter from GrandpaDear Ronny, Years ago you came to me for help. You said,“Grandpa, how is it that you’ve accomplished so much in yourlife? You’re sti...
问题详情:某鱼雷采用Al-AgO动力电池,以溶解有*氧化钾的流动海水为电解液,电池反应为:2Al+3AgO+2KOH=3Ag+2KAlO2+H2O,下列说法不正确的是A.AgO为电池的正极 B.Al在电...
问题详情:某鱼雷采用Al-AgO动力电池,以溶解有*氧化钾的流动海水为电解液,电池反应为:2Al+3AgO+2KOH3Ag+2KAlO2+H2O,下列说法不正确的是( )为电池的正极在电池反应中被氧化C.电子由AgO极经外电路流向Al极D.溶液中的O...
问题详情:lot A.go B.lost C.photo D.only【回答】B知识点:语音题型:选择题...
问题详情:It’stimenow. g go【回答】D知识点:非谓语动词题型:选择题...
Istoppedalongtimeago.Connie:alongtimeago.Toolongagotoremember.Itcouldbefun.Yfirstmeltingmomentseemsalongtimeago.Blongtimeago,therewasahugeappletree.Yes.Idon'tknowwhen.Alongtimeago.Sheandhimwerealongt...
问题详情: I began watching here an hour ago, but now nothing ______ yet. A. happens B. will happen C. happened D. has happened 【回答】D知识点:动...
Itstartedseveralyearsago.Thetreatywasannulledseveralyearsago.Imetheronceseveralyearsago.IheardofLiYundiseveralyearsago.Li'sparentscametothiscoastalcityseveralyearsago.Heunderwentamajorheartsurgerysev...