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计算-(-1)+|-1|,结果为( )A.-2 B.2 C.0 D.-1
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计算机中硬盘存储容量通常以GB为单位表示1GB等于字节
2的10次幂
2的20次幂
2的30次幂
2的16次幂
按照如图所示的计算机程序计算若开始输入的x值为2第一次得到的结果为1第二次得到的结果为4第2015次
1
2
3
4
雄性豚鼠的一个精原细胞经有丝分裂后产生两个子细胞
1和A.2;另一个精原细胞经减数第一次分裂后得到两个子细胞
1和B.2,其中一个次级精母细胞接着进行减数第二次分裂,形成的两个子细胞为
1和C.2。那么,在无交叉互换和突变的情况下,下列说法中不符合事实的是( ) A.染色体数目、形态大小各自相同的细胞有三组:A.1和A.2、B.1和B.2、C.1和C.2 B.A.1和A.2中一定存在同源染色体 C.B.1和B.2中一定存在染色单体
细胞内核DNA分子数的关系是A.1=A.2=B.1=B.2
可逆反应
2(?)+
2(?)
2AB(?);ΔH.=-Q kJ/mol,当温度和压强改变时n(AB)的变化如图,下列叙述正确的是 A. A2、B.2及AB均为气体,Q.>0 B.AB为气体,A.2、B.2至少有一种为非气体,Q.>0
AB为气体,A.2、B.2有一种为非气体,Q.<0
AB为固体,A.2、B.2有一种为非气体,Q.>0
黑松的针叶为
2针1束
2针2束
3针1束
3针2束
正弦交流电的有效值为其最大值的倍
2 倍
2 倍
1/ 3 倍
1/ 2 倍
按照如图所示的计算机程序计算若开始输入的x值为2第一次得到的结果为1第二次得到的结果为4第2015次
1
2
3
4
计算﹣|﹣3|+1结果正确的是
4
2
﹣2
﹣4
比a的2倍大1的数列式表示是
2(a+1)
2(a﹣1)
2a+1
2a﹣1
下列式子的计算结果为26的是
2
3
+2
3
2
3
•2
3
(2
3
)
3
2
12
÷2
2
计算的结果是
2
±2
-2
4
急淋白血病总治疗时间一般为
2年
2(1/2)~3(1/2)年
3(1/2)~4年
4(1/2)~5年
5(1/2)~6年
新的计算机软件保护条例于开始实施
2 0 0 1 年1 2 月1 0 日
2 0 0 2 年1 月1 日
2 0 0 2 年1 0 月1 日
下列计算结果正确的是
2
2
+2
2
=2
4
2
3
÷2
3
=2
6240ZJ柴油机的供油提前角为
2 1 °
2 6°
42°
|mx-1|
2或-4
2或-1
2或-4或-1
2
固定资产残值率按计算
2%~3%
2%~4%
1%~3%
3%~5%
下列程序的运行结果是 main {intx=1y=3a=0; whilex++!=y-=1
2,3,2,
2,3,1
1,3,3
3,1,2
对于CRH1的TBU1和TBU2MVB区段控制和监控范围为
2动1拖
2动2拖
1动1拖
1动2拖
现金折扣一般为发票金额的
2%~6%
2%~4%
1%~5%
1%~7%
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Wellbe.Ittakestime.I'msureitwillwork.
若与都是二次根式则=.
Hehadalongtelephonec withhisteacheryesterday.
已知|a-1|+=0则a²+b²=.
8分Themorningafteraneveningstruggletocareformythree﹣year﹣olddaughterIcouldn'twaittogethertoschool.Iasamotherwastiredfromtheangerandherinabilitytocommunicatebecauseofherslowedlanguagedevelopment. AsIaccompaniedherintothecarIfeltdesperate.Nothingwasrightwithourworld.She'dbeenbornaroundthesametimewhenthenationwaswitnessingthebirthofanotherGreatRecession.Myjobandmyhousehadbeenvictims.Thenthishappened.Mychild'slanguagedelaywasidentifiedbutdoctorsstruggledtoproperlyhelpherIfeltlikewebothneededtoherescued. Ireturnedthatafternoonasdisenchantedwiththelittlegirl1lovedaswhen1left.Walkingslowlytowardtheschool'splaygroundgateIfoundherpreschoolteacherracingtogreetme. Youshouldhaveseenhertoday!Hisbreathywordsweresupportedbyexcitement.Ididn'tinterrupt.Seethatclimber.Hepointedtoawoodenpieceofplaygroundequipmentthatlookedlikearockwall.Inodded.Welleverydaysinceshestartedschoolshe'striedandfailedtomakeittothetop.Hetookabreath.Andtodayshedidit! Heexpressedhisjoyjustashe'dwitnessedherconqueringMountEverest!Shecheeredandcelebrated!IwishI'drecordedit!Hiswordscomfortedme.Mydaughterhadconqueredhermountain. AssherantowardmeIrecognizedsomethingIhadn'tbefore.Isawherperseverance毅力.Isawherstrength.IsawaHero. Everydaygreatnesscelebratesordinarypeoplewhodounusualthingsinbigandsmallwaysshowingcouragekindnessloveandselflessness.Weencourageyoutoclickthesebriefaccountsandinviteyoutoshareyourownstory. 1Whydidtheauthorrushherdaughtertoschool? A.Shewasbusywithherworkasadoctor. B.Shehadafightwithherdaughterlastnight. C.Shebrokedownwhendealingwithherdaughter. D.ShehadtoselltheirhouseduetoGreatRecession. 2Whichofthefollowingbestexplainsdisenchantedunderlinedinparagraph3? A.Happy. B.Concerned. C.Careful. D.Disappointed. 3Whydidthelittlegirl'spreschoolteacherfeelexcited? A.ShesucceededinstandingonMountEverest. B.Shemanagedtoclimbupthewoodenequipment. C.Shegotthefirstplaceintheschoolsportsmeet. D.Shebegantocommunicatewithothersnormally. 4Fromwhichisthetextmostprobablytaken? A.Theradio. B.Amagazine. C.Anewspaper. D.TheInternet.
﹣27的立方根与的平方根的和是A.0 B.6 C.0或-6 D.-6
²=
Themuchyoureadthefasteryouwillbe.
判断下列各式哪些是二次根式x>0x≥0y≥0.
x是怎样的实数时式子有意义
计算²=
=
若求a2009+b2009的值.
它的确提高了我说的技能.Itreally my.
=
15分ThetraditionalChineselunarcalendardividestheyearinto24solarterms.AwakeningofInsects惊蛰1fallonMar6andendsonMar20thisyear. AwakeningofInsectssignalsariseintemperatureandincreasedrainfall.Asthe2threesolarterminthelunaryear3itnamesuggeststhefactthatanimalssleepinginwinterareawakened4springthunderandthattheearthbeginstocomebacktolife.Itisthekeytimeforspringagricultural5activity.Itisalsoagoodtimeforpeopletoenjoyfunoutdoorsespeciallyforpeoplelivinginthecity.6drivetothesuburbsfishinginalakeorenjoyingthesingingbirdwillmakeforaperfectweekendinspring.Themostpopularfruitinthisseasonispears. EatingpearsaroundtheAwakeningofInsects7beawidely﹣practicedcustominChina.Astheweathergets8warmandtheairbecomesdrierpeopletendtofeeltheirmouthsandtonguesaredry9cancausecoldsorcoughs.Apearissweetjuicyandcoldmoistening湿润thelungstoarrestacough.10pearsarehighlyrecommendedduringtheAwakeningofInsects.
计算=
若|2009-a|+=a求a-2009²的值.
=
30分JohnnyandIlivedinasmallneighborhoodin1955.Wehadboughtourtwoyoungsonstwo1forChristmasandJohnnywouldassemblethemonChristmasEve. ButonChristmasEvedayJohnny2togotoBrookleyAirForceBaseinMobiletorepairajet.Ihadmyhands3withflourpreparingforChristmasdinnerand4twoenergeticboys. Iwasmakingthechocolatecakewhenan5knockedonthedoor.ItwasBeatricewhowasthe6persononourroadwithatelephone.Thebasehad7tosaythataheavytorquewrench扭矩扳手hadcomeapartinJohnny'shandmakingthehone8.Mysister﹣in﹣lawRuthandherhusbandOttotookmetothe9whilemymother﹣in﹣lawstayedwiththechildren. Wegotthereonlyto10Johnnywithacastonhisarmeagertogethomealthoughthedoctorrequiredthathe11.ItwasChristmasEveJohnny12andhehadbikestoassembleforhisboys.Thedoctorsaidhe'dconsider13himthenextmorningifJohnnycouldfindsomeonetodrivehimhome. OnChristmasmorningJohnnytriedcallingthemotorpool车辆调配所.Theysaid14mustcomefromhigherupsoJohnny15makingcalls.16abigbluecarrolleduptothehospitalaskingforthemanwhoneededa17home. Johnny'smotherandIwereputtingdinneronthetablewhenweheardthecar.Wewere18toseeJohnny.WithOtto'shelpJohnnyassembledtheboys'gifts. ThatcoldChristmasDayourheartswerefullof19forthosewhohadgonetheextramiletobringus20ontheholiday. 1A.cars B.bicycles C.phones D.toys 2A.asked B.refused C.had D.used 3A.full B.decorated C.related D.familiar 4A.searchingfor B.playingwith C.worryingabout D.lookingafter 5A.stranger B.engineer C.operator D.neighbor 6A.last B.right C.only D.first 7A.paused B.called C.decided D.intended 8A.broken B.dirty C.ugly D.abandoned 9A.base B.hospital C.destination D.station 10A.find B.supply C.assist D.equip 11A.leave B.rest C.stay D.relax 12A.believed B.imagined C.expected D.argued 13A.admiring B.dismissing C.rewarding D.assessing 14A.ideas B.demands C.orders D.policies 15A.started B.tried C.kept D.stopped 16A.Suddenly B.Finally C.Instantly D.Gradually 17A.lift B.recipe C.trip D.voyage 18A.thrilled B.embarrassed C.motivated D.terrified 19A.generosity B.consideration C.kindness D.appreciation 20A.close B.apart C.around D.together
25分假定你是李华你的笔友Peter所在的林肯中学将举办中国文化周活动他来信向你寻求活动相关建议.请你给他回信内容要点包括 1.活动内容及形式 2.说明推荐理由 注意 1.词数100左右 2.可以适当增加细节以使行文连贯 3.可能用到的词汇剪纸paper﹣cutting书法calligraphy
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8分Humanshavealwaysconsideredthemselvesspecialcomparedwithotheranimals.Onereasonisthecomplexityofourlanguage﹣boundedbyuniquerulessuchassyntaxwherewestringwordstogetherinaspecificordertocreatemeaningfulsentences.Butitturnsoutabirdmayalsovocalize发声withsyntaxrules. TheJapanesegreattitisabirdthat'sacloserelativeofNorthAmerica'sveryownchickadee.ToshitakaSuzukiofJapan'sGraduateUniversityforAdvancedStudieshasbeenlisteningtothecallsoftheJapanesegreattitforthepastdecade.Suzukihasrecordedatleasttentypesofalarmcallsusedbythebird.OneofthoseisknownastheABCcallwhichwarnsothergreattitsofthepresenceofapredator捕食者andanotheristheDcallwhichsignalsthebirdstoapproachthecaller. NowSuzukiandhiscolleagueshavefoundthatthegreattitusesthosecallstogethertodeliverbothmessagestootherbirds.Andtheyfoundthattheorderofthatcallwasvital﹣onlyABC﹣Dcallmadesensetothebirds.WhenthescientistsintentionallychangedtheordertocreateaD﹣ABCcallthebirdsdidnotrespond.ThestudyispublishedinthejournalNatureCommunications. IthinkthereallyinterestingthingiswhytheordermattersandfiguringthatoutIthinkwillbedifficultbutalsopotentiallyreallyreallyinterestingbecauseit'llgivealotofdeepunderstanding…saidDavidWheatcroftofSweden'sUppsalaUniversityamemberofthestudyscientists.Youwouldn'texpectthatitwouldmatter.Obviouslyitmattersinhumanlanguagetheorderinwhichwesaythingsbutit'sstillsomehowamazingwhenyoufinditinbirds.SoIthinkunderstandingwhyit'sthecasewillbereallyinterestinginthefuture Theworkcouldhelpexplaintheevolutionofthebuildingblocksandstructure结构ofourownlanguage. 1What'sthemajorfunctionofparagraph1? A.Toshowlanguagedifferencestoreaders. B.Totellacommonlyacceptedbelieftoreaders. C.Tointroducethebackgroundofthewholetext. D.Toraisereaders'interestinthefollowingtext. 2WhydidthebirdsmakenoresponsetoD﹣ABCcall? A.Itfailedtomakeanysense. B.Itwasfarbeyondtheirlevel. C.Theyfounditbarelynatural. D.Theywereafraidofscientists. 3WhatcanweknowaccordingtoDavidWheatcroft'swords? A.Hespeakspositivelyofthediscoverythatthesoundorderexistsinbirds. B.Scientistshavealreadyunderstoodthereasonwhytheordermatters. C.Theorderdiscoveredinbirdsisasobviousasinhumanlanguage. D.Hethinksscientistslookfortheorderinbirdsforentertainment. 4Whatisthebesttitleforthetext? A.Birds'SoundMakesThemSurvive B.BirdsHelpMan'sLanguagetoEvolve C.BirdsCombineCallsinaSpecificOrder D.Birds'LanguageisDifferentFromMan's
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100的平方根是
²=
=
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TeenTourCampsatSummerCamps.com Rock﹣N﹣WaterChristianCamps LotusCaliforniaUnitedStatesDuration4weeks Foundedin1989Rock﹣N﹣WaterisagroupofhighlytrainedChristianswhowanttoimpactyoungpeoplewiththejoyofGod'sLivingWord.Wefocusourprogramonbiblicalprinciplesandweusethehelpofnaturefriendshipandchallengetodevelopcharacterandhaveridiculousamountsoffun. OdysseyExpeditionsCaribbean RoadTownTortolaDuration3weeks OdysseyExpeditionsofferstropicalsailingandscubadivingadventuresforteenagerswithmarinebiologywatersportsandscubacertificationsatexcitingCaribbeanlocations.Establishedin1995OdysseyisthebestopportunitytosafelyexploretheCaribbeanaboardabeautifulsailingcatamaran.Noexperiencenecessary.Reserveyourspotbeforeavailability.Smallgroupsof9﹣12allowyoutohavethemostfun! TheG2AcademyGolfCamp BlufftonSouthCarolinaDurationvariable ThesummerprogramatG2isdesignedspecificallyforgirlsempoweringthemfortheirfuturesuccess.Studentscanjoinweeklysessionsorstaytheentiresummer!WhileparticipatingintheG2AcademySummerProgramstudentsreceiveG2ProprietaryTrainingingolfmentaltoughnessphysicalfitnessnutritionandempowerment. Berklee'sAspireMusicPerformanceIntensive BostonMassachusettsUnitedStatesDuration5weeks Berklee'sAspirewillgiveyouatasteofBerkleethepreeminentinstituteofcontemporarymusicandtheperformingarts.WhetheryouareinmiddleschoolhighschoolorbeyondthereisaBerkleesummerprograminmusictheaterand/ordanceforyou.You'llenjoyaccesstoBerklee'sstate﹣of﹣the﹣artfacilitiesasyoulearnfromfacultywhoaretheverybestatwhattheydojoinedbystudentsfromallovertheworld. 1Whichtourcampdoyouneedtobookinadvance? A.TheG2AcademyGolfCamp. B.Rock﹣N﹣WaterChristianCamps. C.OdysseyExpeditionsCaribbean. D.Bcrklee'sAspireMusicPerformanceIntensive 2WhatistheprimaryfocusforBerklee'sAspiretourcamp? A.Adventure. B.Sports. C.Music. D.Religion. 3WhatisuniqueabouttheG2AcademyGolfCamp? A.Itoffersscubacertifications. B.ItisbasedonChristianprinciples. C.Itrequiresnopreviousexperience. D.Itisintendedforgirlsonly.
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