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A.reply B.silly C.lonely D.calmly
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英语《相同项单选集》真题及答案
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动态信道分配分为慢速DCA和快速DCA
已知ab是单位向量a·b=0若向量c满足|c-a-b|=1则|c|的取值范围是
[
-1,
+1]
[
-1,
+2]
[1,
+1]
[1,
+2]
慢速DCA将无线信道分配至而快速DCA将信道分至
﹣的绝对值是
﹣
﹣5
5
在TD一SCDMA系统中DCA的方法有哪几种.
时域DCA
频域DCA
码域DCA
空域DCA
根据信道分割方式的不同动态信道分配可分为如下几种方法
频域DCA
时域DCA
码域DCA
空域DCA
TD一SCDMA的DCA主要包括哪些.
频域DCA
时域DCA
码域DCA
空域DCA
若7-3与+3互为相反数则的值为________.
在TD-SCDMA系统中DCA的方法有哪几种
时域DCA
频域DCA
码域DCA
空域DCA
康明斯发电车中如需大量添加DCA防护剂应将DCA加入到
DCA水滤
膨胀水箱
散热器气室
发电车上水口
发电车DCA浓度0.3至0.8个单位DCA4/1升容量冷却液
错畸形的矫治标准应该是
生理
最适
理想正常
个别正常
平衡
TD一SCDMA网络中动态信道分配DCA分为哪几种
频域DCA
单向DCA
双向DCA
时域DCA
空域DCA
码域DCA
动态信道分配DCA根据调节速率分为DCA和DCA
动态信道分配技术一般包括两个方面一是把资源分配到小区也叫做二是把资源分配给承载业务也叫做
慢速DCA,快速DCA
快速DCA,慢速DCA
前向DCA
后向DCA
患者女43岁缺失正常医师设计固定义齿修复 对该桥体采取减轻力的方法中下述哪项是不正确的
减小桥体
面颊舌径宽度
加大桥体的
面颊外展隙
使桥体的
面尽可能平坦,不形成明显的沟槽
加深
面沟槽
锐利牙尖 ? ?降低非功能尖高度
已知反应①2BrO+Cl2===Br2+2ClO②5Cl2+I2+6H2O===2HIO3+10HC
ClO
>BrO
>IO
>Cl
2
BrO
>Cl
2
>ClO
>IO
BrO
>ClO
>Cl
2
>IO
Cl
2
>BrO
>ClO
>IO
一组数为361015则第10个数为____________
TD-SCDMA系统中动态信道分配DCA的方法有哪几种
时域DCA/空域DCA
时域DCA/码域DCA/频域DCA
时域DCA/空域DCA/码域DCA
时域DCA/空域DCA/码域DCA/频域DCA
电工仪表上标有许多符号其中表示交流电压的是
V
DCA
DCA
ACV
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A.familiar B.crisis C.daylight D.decline
Wefirstthinkofthetraditionalornuclearfamily.Thisisatwo-generationfamilythefatherandthemotherandtheirownchildren.Mostcoupleswantedtohavefourchildrentwoboystwogirls.Somenuclearfamilieshowevermayaddoneormoregrandparentstocomemlivewiththemthatisthreegenerations.Thiskindoffamilywithgrandparentsparentsandgrandchildreniscalledanextendedfamily.Thisfamilytypewasnotverycommonduringthelaterhalfofthetwentiethcenturybutit’sbecomingmorecommonnowasanelderlygrandparentmovesintolivewithasonordaughter.ThisismorepossiblenowthatAmericanhomeshavebecomelarger.Whatisinterestinghoweveristhatafterthegrandchildrenmoveoutofthehomeandstarttheirownfamiliesthisextendedfamilyshrinksbacktoanuclearfamilywithjusttwogenerationsagainlivingtogetheragrandparentandparentswiththegrandchildrencomingonlyforoccasionalvisits.Nowthefatherlessormotherlessfamilyisonekindofwhatwecallasingle-parentfamily.Inthefatherlessfamilyit’sjustthemotherandherchildren.AsIsaidthiscanbetheresultofthehusband’sdeathofanunmarriedmotherofaseparationordivorce.Therearealsoagrowingnumberofmotherlessfamilies--wherethefatherraisesthechildrenforanyofthesamereasons.Amotherlessfamilymayalsobefatherlessbutstillafamilywithoneadult.Thisisbecomingmorecommoninthebigcitieswhereagrandmotherwillraiseherdaughter’schildrenwhilethedaughtergoeselsewheretowork.Oneothernewkindoffamilyisbecomingincreasinglymorecommon.Asingleparentwithoneormorechildrenwillmarryagain.Perhapstheotherparentisalsoasingleparent.Togethertheywillstartwhatiscalledablendedfamilywhichblendstogetherorcombinesthechildrenfromtwootherfamilies.Whichofthefollowingisthebesttitleofthispassage
KeyJamesSecretaryofHealthandHumanResourcesintheVirginiaStategovernmentlovestoturnthetablesonthosewhodon’tthinkit’spossibletobemiddle-classconservativeeducatedandstillbetrulyblack.OnceduringanabortiondebateawomanintheaudienceangrilytoldJamesshewassomiddle-classshedidn’thaveaclueaboutrealAfricanAmericanlife.Ifyouunderstoodwhatthesewomengothroughthewomansaidyouwouldrealizethatabortionistheironlychoice.Jamesthenaskedthewomantoconsiderapoorblackmotheronwelfare.Shealreadyhasfourchildrenandanalcoholichusbandwhohasallbutabandonedthefamily.Nowshediscoversanotherchildisontheway.HowwouldyoucounselthatwomanaskedJames.Haveanabortionthewomanresponded.Thatchildwouldhaveaverypoorqualityoflife.IhaveavestedinterestinyouranswerJamessaid.ThewomanIdescribedwasmymother.Iwasthefifthofsixchildrenbornintopoverty.Andincaseyou’reinterestedthequalityofmylifeisjustfine!/James’familyleda______lifewhenshewasborn.
Youhavestudiedhardandthedayhas21comewhenyoumustwriteyourexam.Trytoarriveafewminutesbeforethe22starts.Avoidtalkingtootherstudentsespeciallythose23aredoingsomelastminutecramming.Thesepeoplewillmakeyounervousand24yourconcentration. Ifyoucanchooseaseatthatallowsyouto25.Trytositawayfromthe26totheroomsoyouarenot27bystudentsleavingbeforeyouarefinished.Listen28toanyverbalinstructionsfromtheteacherorany29writtenontheboard. Herearefive30fortakingexams: 1.Catchyour31; 2.Readthe32verycarefully; 3.33throughthetest; 4.34yourtime; 5.Attackthe35. 33
Youhavestudiedhardandthedayhas21comewhenyoumustwriteyourexam.Trytoarriveafewminutesbeforethe22starts.Avoidtalkingtootherstudentsespeciallythose23aredoingsomelastminutecramming.Thesepeoplewillmakeyounervousand24yourconcentration. Ifyoucanchooseaseatthatallowsyouto25.Trytositawayfromthe26totheroomsoyouarenot27bystudentsleavingbeforeyouarefinished.Listen28toanyverbalinstructionsfromtheteacherorany29writtenontheboard. Herearefive30fortakingexams: 1.Catchyour31; 2.Readthe32verycarefully; 3.33throughthetest; 4.34yourtime; 5.Attackthe35. 29
Ididn’tattendtheconferencebutIwishIthere.
你的朋友Tom请你LiYuan周末和他一起去承德的家里玩儿但你有事不能去请你用英文给他写一封信内容包括1感谢他的邀请2说明不能去的原因3为不能去表示遗憾
TheCaliforniacondoristhelargestbirdinNorthAmerica.Itisanendangeredspecies.20yearsagotherewerelessthan30birdsleft.Allofthebirdsweretrappedandkeptinsafeplaces.Thenumberofcondorsgrewlarger.Puppetsthatlookedlikecondorswereusedtotakecareofbabiessothatmoreeggscouldbehatched.Inthelastfewyearssomeofthecondorshavebeenreturnedtothewild.Buttheyseemtolikehumansnowandcomeintodangeraroundpeople.Somebirdsperchonhousesandtearuproofs.Somehaveevengoneintohouses.Birdshavebeenshotpoisonedandkilledbypowerlines.Nowthereisanotherproblem.Condorsfinddeadanimalsthathuntershavekilled.Thebulletscauseleadtogetintothemeatanditcankillthecondors.Somepeoplethinkhuntersshouldusedifferentbullets.Otherpeoplethinkthatthebirdsshouldnotbeputintothewild.Whyistheprogramthat’stryingtosavecondorsputtingthemintodanger
Thesalaryofanengineerismuchhigher
AirportbaggagescreenersintheUSAdisplayingseizedchainsawsmachetesandknives21travelerstochecktheirluggageforoffensiveobjectsbeforeboardinga22. OfficialsoftheTransportSecurityAdministrationTSA23thatsinceFebruary2002morethan7.5million24itemshadbeenseized.Theyincluded50000boxcutters—a25saidtobeusedbytheSept.112001hijackers—and1437firearmsas26as2.3millionknives. TheTSAofficialstoldanewsconferencemostpeoplewith27itemsintheirbagsintendednomalicebutadvised28toconsultthewebsitewww.Tsatraveltips.usaforadviceonwhattoleavebehindwhen29atrip. SincetheSept.11attacksscreenershaveconfiscatedseemingly30itemslikenailclippersandcigarettelighters31passengers. Butsomecarrymoreobviously32items.Chainsawsaweedcuttingmachinehandsawsandmachetessteakknivesbottlesofcampingstovefuelandperfumebottlesshapedlikehandgrenadeswereamongitems33asasampleofobjectsseizedatNewYork’sJohnF.KennedyInternationalAirport. Whilesomecarry-onitemsmayhavebeen34—ahockeystickorachild’splasticsword—other35byTSAhaveyieldedrazorbladesintennisshoesandabayonethiddeninahollowed-outartificialleg. 22
A.seeyoutomorrow B.Ihaveyourname C.checkin D.Ihaveone E.totakealook F.youwant G.areyouinterestedin H.Ihavetoputyouinthewaitinglist Blanca:Hello.I’mcallingabouttheapartmentyouadvertised. Manager:Yes.Whatkindofapartment56 Blanca:I’minterestedinaone-bedroom.Doyouhaveanyavailable Manager:Yes.57.whendoyouneedit Blanca:Sometimearoundnextweek.MayIcomeovertomorrow58 Manager:Sure.Whattimewouldyouliketocome Blanca:Howabout10am Manager:Good.May59please Blanca:MynameisBlanca. Manager:Blanca.I’ll60. 59
Sincetheroadiswetthismorninglastnight.
KeyJamesSecretaryofHealthandHumanResourcesintheVirginiaStategovernmentlovestoturnthetablesonthosewhodon’tthinkit’spossibletobemiddle-classconservativeeducatedandstillbetrulyblack.OnceduringanabortiondebateawomanintheaudienceangrilytoldJamesshewassomiddle-classshedidn’thaveaclueaboutrealAfricanAmericanlife.Ifyouunderstoodwhatthesewomengothroughthewomansaidyouwouldrealizethatabortionistheironlychoice.Jamesthenaskedthewomantoconsiderapoorblackmotheronwelfare.Shealreadyhasfourchildrenandanalcoholichusbandwhohasallbutabandonedthefamily.Nowshediscoversanotherchildisontheway.HowwouldyoucounselthatwomanaskedJames.Haveanabortionthewomanresponded.Thatchildwouldhaveaverypoorqualityoflife.IhaveavestedinterestinyouranswerJamessaid.ThewomanIdescribedwasmymother.Iwasthefifthofsixchildrenbornintopoverty.Andincaseyou’reinterestedthequalityofmylifeisjustfine!/James’father______.
Youhavestudiedhardandthedayhas21comewhenyoumustwriteyourexam.Trytoarriveafewminutesbeforethe22starts.Avoidtalkingtootherstudentsespeciallythose23aredoingsomelastminutecramming.Thesepeoplewillmakeyounervousand24yourconcentration. Ifyoucanchooseaseatthatallowsyouto25.Trytositawayfromthe26totheroomsoyouarenot27bystudentsleavingbeforeyouarefinished.Listen28toanyverbalinstructionsfromtheteacherorany29writtenontheboard. Herearefive30fortakingexams: 1.Catchyour31; 2.Readthe32verycarefully; 3.33throughthetest; 4.34yourtime; 5.Attackthe35. 31
Wateralwayssteamwhenboiled.
themoreyouareawareofcontentandmeaning.
Wewalkedinsoquietlythatthenurseatthedeskdidn’tevenlifthereyesfromthebook.MumpointedatabigchairbythedoorandIknewshewantedmetositdown.WhileIwatchedmouthopeninsurpriseMumtookoffherhatandcoatandgavethemtometohold.Shewalkedquietlytothesmallroombytheliftandtookoutawetmop.ShepushedthemoppastthedeskandasthenurselookedupMumnoddedandsaid"Verydirtyfloors." "Yes.I’mgladthey’vefinallydecidedtocleanthem"thenurseanswered.ShelookedatMumstrangelyandsaid"Butaren’tyouworkinglate" Mumjustpushedhardereachswipeofthemoptakingherfartherandfartherdownthehall.Iwatcheduntilshewasoutofsightandthenursebadturnedbacktowritinginthebigbook. AfteralongtimeMumcameback.Hereyeswereshining.Shequicklyputthemopbackandtookmyhand.AsweturnedtogooutofthedoorMumnoddedpolitelytothenurseandsaid"Thankyou." OutsideMumtoldme:"Dagmarisfine.Nofever." "YousawherMum" "Ofcourse.Itoldheraboutthehospitalrulesandshewillnotexpectusuntiltomorrow.Dadwillstopworryingaswell.It’safinehospital.Butsuchfloors!Amopisnogood.Theyneedabrush./ Afterreadingthestorywhatcanweinferaboutthehospital
Theresultmademe.ItwasnothalfsogoodasIhadexpected.
WillitraintomorrowIhope
Itispossiblethattheweatheroftheworldmaybechanging.Somescientistsimaginethatthiscouldevenmeanthebeginningofanothericeage.Theeffectsofsuchachangeinweatheronhumanpopulationoftheworldwouldbefrightening.Recentresearchsuggeststhatthewarmingtrend倾向ofthepasthundredyearsorsomaybecomingtoanend.Duringthepasttenyearsscientiststellusthatthetemperatureoftheworldhasdroppedalittle.Thiswouldhaveeffectsonwindandrainintheweatherpicture.Scientistsbelievecloudsmaybeanimportantfactor因素inchangingtheamountofheatontheearth.Anotherpossibilityisthatman’sagricultureandindustrywaysmayaffectthenaturalweather.Thewarmingweatherofthepasthundredyearsmay______.
AirportbaggagescreenersintheUSAdisplayingseizedchainsawsmachetesandknives21travelerstochecktheirluggageforoffensiveobjectsbeforeboardinga22. OfficialsoftheTransportSecurityAdministrationTSA23thatsinceFebruary2002morethan7.5million24itemshadbeenseized.Theyincluded50000boxcutters—a25saidtobeusedbytheSept.112001hijackers—and1437firearmsas26as2.3millionknives. TheTSAofficialstoldanewsconferencemostpeoplewith27itemsintheirbagsintendednomalicebutadvised28toconsultthewebsitewww.Tsatraveltips.usaforadviceonwhattoleavebehindwhen29atrip. SincetheSept.11attacksscreenershaveconfiscatedseemingly30itemslikenailclippersandcigarettelighters31passengers. Butsomecarrymoreobviously32items.Chainsawsaweedcuttingmachinehandsawsandmachetessteakknivesbottlesofcampingstovefuelandperfumebottlesshapedlikehandgrenadeswereamongitems33asasampleofobjectsseizedatNewYork’sJohnF.KennedyInternationalAirport. Whilesomecarry-onitemsmayhavebeen34—ahockeystickorachild’splasticsword—other35byTSAhaveyieldedrazorbladesintennisshoesandabayonethiddeninahollowed-outartificialleg. 24
Youhavestudiedhardandthedayhas21comewhenyoumustwriteyourexam.Trytoarriveafewminutesbeforethe22starts.Avoidtalkingtootherstudentsespeciallythose23aredoingsomelastminutecramming.Thesepeoplewillmakeyounervousand24yourconcentration. Ifyoucanchooseaseatthatallowsyouto25.Trytositawayfromthe26totheroomsoyouarenot27bystudentsleavingbeforeyouarefinished.Listen28toanyverbalinstructionsfromtheteacherorany29writtenontheboard. Herearefive30fortakingexams: 1.Catchyour31; 2.Readthe32verycarefully; 3.33throughthetest; 4.34yourtime; 5.Attackthe35. 27
Youhavestudiedhardandthedayhas21comewhenyoumustwriteyourexam.Trytoarriveafewminutesbeforethe22starts.Avoidtalkingtootherstudentsespeciallythose23aredoingsomelastminutecramming.Thesepeoplewillmakeyounervousand24yourconcentration. Ifyoucanchooseaseatthatallowsyouto25.Trytositawayfromthe26totheroomsoyouarenot27bystudentsleavingbeforeyouarefinished.Listen28toanyverbalinstructionsfromtheteacherorany29writtenontheboard. Herearefive30fortakingexams: 1.Catchyour31; 2.Readthe32verycarefully; 3.33throughthetest; 4.34yourtime; 5.Attackthe35. 35
Itispossiblethattheweatheroftheworldmaybechanging.Somescientistsimaginethatthiscouldevenmeanthebeginningofanothericeage.Theeffectsofsuchachangeinweatheronhumanpopulationoftheworldwouldbefrightening.Recentresearchsuggeststhatthewarmingtrend倾向ofthepasthundredyearsorsomaybecomingtoanend.Duringthepasttenyearsscientiststellusthatthetemperatureoftheworldhasdroppedalittle.Thiswouldhaveeffectsonwindandrainintheweatherpicture.Scientistsbelievecloudsmaybeanimportantfactor因素inchangingtheamountofheatontheearth.Anotherpossibilityisthatman’sagricultureandindustrywaysmayaffectthenaturalweather.Thetemperatureoftheworldinthepasttenyearshasdroppedalittle______.
TheCaliforniacondoristhelargestbirdinNorthAmerica.Itisanendangeredspecies.20yearsagotherewerelessthan30birdsleft.Allofthebirdsweretrappedandkeptinsafeplaces.Thenumberofcondorsgrewlarger.Puppetsthatlookedlikecondorswereusedtotakecareofbabiessothatmoreeggscouldbehatched.Inthelastfewyearssomeofthecondorshavebeenreturnedtothewild.Buttheyseemtolikehumansnowandcomeintodangeraroundpeople.Somebirdsperchonhousesandtearuproofs.Somehaveevengoneintohouses.Birdshavebeenshotpoisonedandkilledbypowerlines.Nowthereisanotherproblem.Condorsfinddeadanimalsthathuntershavekilled.Thebulletscauseleadtogetintothemeatanditcankillthecondors.Somepeoplethinkhuntersshouldusedifferentbullets.Otherpeoplethinkthatthebirdsshouldnotbeputintothewild.Ifthecondorpopulationhastripledsincetwodecadesagoabouthowmanyaretherenow
A.seeyoutomorrow B.Ihaveyourname C.checkin D.Ihaveone E.totakealook F.youwant G.areyouinterestedin H.Ihavetoputyouinthewaitinglist Blanca:Hello.I’mcallingabouttheapartmentyouadvertised. Manager:Yes.Whatkindofapartment56 Blanca:I’minterestedinaone-bedroom.Doyouhaveanyavailable Manager:Yes.57.whendoyouneedit Blanca:Sometimearoundnextweek.MayIcomeovertomorrow58 Manager:Sure.Whattimewouldyouliketocome Blanca:Howabout10am Manager:Good.May59please Blanca:MynameisBlanca. Manager:Blanca.I’ll60. 57
A.relaxed B.joined C.dressed D.marked
Ihavesomedifficultiesthesewordswouldyoumindmeyourdictionary
Wefirstthinkofthetraditionalornuclearfamily.Thisisatwo-generationfamilythefatherandthemotherandtheirownchildren.Mostcoupleswantedtohavefourchildrentwoboystwogirls.Somenuclearfamilieshowevermayaddoneormoregrandparentstocomemlivewiththemthatisthreegenerations.Thiskindoffamilywithgrandparentsparentsandgrandchildreniscalledanextendedfamily.Thisfamilytypewasnotverycommonduringthelaterhalfofthetwentiethcenturybutit’sbecomingmorecommonnowasanelderlygrandparentmovesintolivewithasonordaughter.ThisismorepossiblenowthatAmericanhomeshavebecomelarger.Whatisinterestinghoweveristhatafterthegrandchildrenmoveoutofthehomeandstarttheirownfamiliesthisextendedfamilyshrinksbacktoanuclearfamilywithjusttwogenerationsagainlivingtogetheragrandparentandparentswiththegrandchildrencomingonlyforoccasionalvisits.Nowthefatherlessormotherlessfamilyisonekindofwhatwecallasingle-parentfamily.Inthefatherlessfamilyit’sjustthemotherandherchildren.AsIsaidthiscanbetheresultofthehusband’sdeathofanunmarriedmotherofaseparationordivorce.Therearealsoagrowingnumberofmotherlessfamilies--wherethefatherraisesthechildrenforanyofthesamereasons.Amotherlessfamilymayalsobefatherlessbutstillafamilywithoneadult.Thisisbecomingmorecommoninthebigcitieswhereagrandmotherwillraiseherdaughter’schildrenwhilethedaughtergoeselsewheretowork.Oneothernewkindoffamilyisbecomingincreasinglymorecommon.Asingleparentwithoneormorechildrenwillmarryagain.Perhapstheotherparentisalsoasingleparent.Togethertheywillstartwhatiscalledablendedfamilywhichblendstogetherorcombinesthechildrenfromtwootherfamilies.Howisablendedfamilyformed
Wewalkedinsoquietlythatthenurseatthedeskdidn’tevenlifthereyesfromthebook.MumpointedatabigchairbythedoorandIknewshewantedmetositdown.WhileIwatchedmouthopeninsurpriseMumtookoffherhatandcoatandgavethemtometohold.Shewalkedquietlytothesmallroombytheliftandtookoutawetmop.ShepushedthemoppastthedeskandasthenurselookedupMumnoddedandsaid"Verydirtyfloors." "Yes.I’mgladthey’vefinallydecidedtocleanthem"thenurseanswered.ShelookedatMumstrangelyandsaid"Butaren’tyouworkinglate" Mumjustpushedhardereachswipeofthemoptakingherfartherandfartherdownthehall.Iwatcheduntilshewasoutofsightandthenursebadturnedbacktowritinginthebigbook. AfteralongtimeMumcameback.Hereyeswereshining.Shequicklyputthemopbackandtookmyhand.AsweturnedtogooutofthedoorMumnoddedpolitelytothenurseandsaid"Thankyou." OutsideMumtoldme:"Dagmarisfine.Nofever." "YousawherMum" "Ofcourse.Itoldheraboutthehospitalrulesandshewillnotexpectusuntiltomorrow.Dadwillstopworryingaswell.It’safinehospital.Butsuchfloors!Amopisnogood.Theyneedabrush./ WhichofthefollowingwordsbestdescribesMum
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