havebeen

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paper and printing havebeen used for ages翻译

paperandprintinghavebeenusedforages翻译paperandprintinghavebeenusedforages翻译paperandprintinghavebeenus

英语翻译2.When they will start and where they Will go havebeen decided.

英语翻译2.WhentheywillstartandwheretheyWillgohavebeendecided.英语翻译2.WhentheywillstartandwheretheyWillgoha

if love you is a kind of disease l havebeen regarded as hopeless.

ifloveyouisakindofdiseaselhavebeenregardedashopeless.ifloveyouisakindofdiseaselhavebeenregardedashop

it is the third time ____late this week为什么不选that you are而选when you havebeen

itisthethirdtime____latethisweek为什么不选thatyouare而选whenyouhavebeenitisthethirdtime____latethisweek为什么不

Have you been to Shanghai?Yes,I ( )therefor 3 days last month.答案是havebeen用 have been还是was网上有的人说用havebeen有的人说用was,究竟哪个?如果用havebeen,后面不是有last month吗?现在完成时态不是不能和last mon

HaveyoubeentoShanghai?Yes,I()therefor3dayslastmonth.答案是havebeen用havebeen还是was网上有的人说用havebeen有的人说用was

30.this is one ofthe best books ______ on the subject.A)that have everbeen writtenB)which have everbeen writtenC)that has everbeen writtenD)whatever havebeen written

30.thisisoneofthebestbooks______onthesubject.A)thathaveeverbeenwrittenB)whichhaveeverbeenwrittenC)th

The woman with two children ( )for nearly one and a half hours.A:has been away B:has left C:havebeen away ,请说明理由,

Thewomanwithtwochildren()fornearlyoneandahalfhours.A:hasbeenawayB:hasleftC:havebeenaway,请说明理由,Thewom

13.they started off at about 5 o'clock in the morning.they should there by now .a:arrive b:havebeen arriving c:have arrived d:be arriving

13.theystartedoffatabout5o''clockinthemorning.theyshouldtherebynow.a:arriveb:havebeenarrivingc:havear

You left your shoes at a shop to be repared.What do you say when you walk in to ask if they havebeen reparied yet?这道题的回答

Youleftyourshoesatashoptoberepared.Whatdoyousaywhenyouwalkintoaskiftheyhavebeenrepariedyet?这道题的回答You

英语翻译High performance liquid chromatography,carbon-13 nucleamagnetic resonance,chemical ionization mass spectrometryand gas chromatography with flame ionization detection havebeen employed for the identification and quantitative determlnation

英语翻译Highperformanceliquidchromatography,carbon-13nucleamagneticresonance,chemicalionizationmassspect

英语翻译In modern electronics and optoelectronics,a myriad ofopportunities for both academic and industrial scientists havebeen offered by organic and polymeric light-emitting diodes(OLEDs).1 The flexibility of introducing diverse function-alitie

英语翻译Inmodernelectronicsandoptoelectronics,amyriadofopportunitiesforbothacademicandindustrialscientis

英语翻译This paper focuses on market definition and market power analysis.Our purposeis to demonstrate the inadequacies of the traditional structural indicia that havebeen used by economists and others to define markets and assess market power in

英语翻译Thispaperfocusesonmarketdefinitionandmarketpoweranalysis.Ourpurposeistodemonstratetheinadequacie

20.More highways havebeen built in China,__it much easier for people to travel from one place to another.A.making B.made C.to make D.having made选D为什么不行?

20.MorehighwayshavebeenbuiltinChina,__itmucheasierforpeopletotravelfromoneplacetoanother.A.makingB.m

Great chances _______in the city ,and a lot of factories_______.A.have been take place;havebeen set upB.have take pleace;have been set upC.are taken place;are set upD.were taken place;were set up

Greatchances_______inthecity,andalotoffactories_______.A.havebeentakeplace;havebeensetupB.havetakepl

英语翻译Becoming conscious of our part in the whole through direct experienceo fmembership allows exploration of the relationship between the personalbody and the collective body.When our individual bodies havebeen wounded because of our sufferin

英语翻译Becomingconsciousofourpartinthewholethroughdirectexperienceofmembershipallowsexplorationoftherel

关于have been 的用法we( )best friends for a long time.A.are B.have C.has beenc D.have been应该选那个呢?havebeen 的用法又是什么呢?

关于havebeen的用法we()bestfriendsforalongtime.A.areB.haveC.hasbeencD.havebeen应该选那个呢?havebeen的用法又是什么呢?关于ha

----Have you been to the romantic city,Paris?----Perhaps not in my memory.------,it might havebeen during my early childhood.A.If everB.If anyC.If onceD.If not解释各个选项

----Haveyoubeentotheromanticcity,Paris?----Perhapsnotinmymemory.------,itmighthavebeenduringmyearlyc

have been made 和 have made 有什么区别Education has made a great achievementGreat changes havebeen made in education这两句什么不同?什么时候过去完成时加been?She preferred to go withus rather than stay at home中,【preferred】

havebeenmade和havemade有什么区别EducationhasmadeagreatachievementGreatchangeshavebeenmadeineducation这两句什么不

英语翻译Recent developments in radical reactions involving phosphorusreagents have attracted our attention.Hypophosphorousacid and its corresponding 1-ethylpiperidine salt havebeen used to mediate radical cyclization reactions as analternative to

英语翻译Recentdevelopmentsinradicalreactionsinvolvingphosphorusreagentshaveattractedourattention.Hypopho

英语翻译Deliberative controlconsists of high-level planning,whereas reactive control isbased on directly utilizing sensory information for low-levelcommands.Traditionally,the reactive architectures havebeen considered as behavior-based control.In

英语翻译Deliberativecontrolconsistsofhigh-levelplanning,whereasreactivecontrolisbasedondirectlyutilizing