首页
试卷库
试题库
当前位置:
X题卡
>
所有题目
>
题目详情
若实数x,y满足,则x+3y的最小值为 .
查看本题答案
包含此试题的试卷
高三下学期数学《》真题及答案
点击查看
你可能感兴趣的试题
设z=x+y其中实数xy满足若z的最大值为6则z的最小值为
-3
-2
-1
0
若实数xy满足x>y>0且log2x+log2y=1则的最小值为.
若实数xy满足约束条件则﹣x+2y﹣3的最小值为.
设实数xyb满足若z=2x+y的最小值为3则实数b的值为.
若实数abc满足对任意实数xy有x+2y-3≤ax+by+c≤x+2y+3则a+2b-3c的最小值为
-6
-4
-2
0
已知正实数xy满足xy+2x+3y=42则xy+5x+4y的最小值为.
若实数xy满足x+y-4≥0则z=x2+y2+6x-2y+10的最小值为.
若正实数xy满足2x+y+6=xy则xy的最小值是_______.
若实数xy满足的最小值为3则实数b的值为
已知实数xy满足条件若目标函数z=2x+y的最小值为3则其最大值为.
若实数xy满足x2+y2+8x-6y+16=0求x+y的最小值.
若实数xy满足则z=|x+2y﹣3|的最小值为.
若实数xy满足则x2+y+12的最大值与最小值的差为________.
若实数xy满足且z=2x+y的最小值为4则实数b的值为
0
2
3
4
若实数abc满足对任意实数xy有x+2y-3≤ax+by+c≤x+2y+3则a+2b-3c的最小值为
-6
-4
-2
0
若实数xy满足的最小值为3则实数b的值为
若正实数xy满足2x+y+6=xy则xy的最小值是________.
若正实数xy满足10x+2y+60=xy则xy的最小值是.
若实数xyz满足x+2y+3z=aa为常数求x2+y2+z2的最小值.
设z=x+y其中实数xy满足若z的最大值为6则z的最小值为
-3
-2
-1
0
热门试题
更多
2分随着考试的临近所有学生都开始专注于复习功课. allthestudentsbegantotheirlessons.
某人喝醉了酒絮絮叨叨语无伦次这一现象说明酒精麻痹了
20分假设你是育才中学学生会__李华.上周你校邀请美国某大学的卫斯理教授来校做了一场关于各国身势语的专题讲座.请你代表你校全体学生用英语给他写一封信内容包括 1表示感谢.2你的收获. 注意1.词数100左右.信的开头和结尾已经给出不计入总词数 2.可适当增加细节以使行文连贯. DearMr.Wesley I'mLiHuachairmanoftheStudentUnionofYucaiMiddleSchool._____ Thankyouagainandbestwishestoyou. Yours LiHua
1分CthattheFatherChristmaswouldcometodelivergiftsduringthenightthechildrenwillinglywenttobedearlierthanbefore.
10分 ParentsModelHealthyEating Itshouldcomeasnosurprisethatthemorestressedparentsareatworkthegreatertheburdenontheirfamilyis.1Afterallthemoretimeparentsspendworkingthelesstimeandenergytheyhavetoplanandpreparehealthfulmeals. Foryearsmoststudieshavefocusedontheroleofworkingmotherswhilefatherswereignored.Theydidn'tlookatthefamilyasawhole.2Itaddsanewwrinkletotherelationshipbetweenworkstressandfamilynutrition. Moms'workrelatedstressisstillacentralfactorinhowwellfamilieseatbecausetheytypicallydomostofthefoodshoppingandcooking.3Thestudyfoundthatwhenmomordadexperiencehighlevelsofworkrelatedstresstheirfamiliesareeatingone﹣and﹣a﹣halffewerfamilymealsperweekandtheparentsthemselvesreporteatingfewerfruitsandvegetablesmorefastfoodandarelesslikelytoeatbreakfastregularly. It'sworthnotingthatthestudylookedmainlyatlowincomefamilieswhobelongedtoethnicorminoritygroups.4Buttheimplicationsarewideranging. 5Teachingkidsespeciallyteenagerstohelpwithgroceryshoppingandtocookactualmealsinsteadofjustputtingafrozenpizzainthemicrowavecouldbeanimportantpieceofthepuzzleinhelpingfamiliesimprovestheireatinghabits. A.Butdad'sworkrelatedstresshasalargeimpacttoo. B.Astofamilynutritiontheentirefamilyplaysaroleevenkids. C.Yetthekids'stressmayaffectthefamilies'nutritiontoo. D.Sothefindingsdon'tnecessarilyapplydirectlytoothertypesoffamilies. E.It'salsoprobablynotasurprisethatthiscannegativelyaffectafamily'snutrition. F.Howeverarecentstudydoesandlookattheroleoffathersinparticular. G.Itisparentswhogivetheirkidsagoodmodeltodevelopagoodeatinghabit.
15分Englishisalanguage1bringtoBritaininthe5thcenturybyAnglo﹣SaxonsettlersfromvariouspartsofNorthwestGermany.ItisconvenienttodivideEnglishintothreeperiodsroughly─OldEnglishMiddleEnglishandModernEnglish. The2earlyformofEnglishiscalledOldEnglishorAnglo﹣Saxon.OldEnglishdevelopedfromasetofNorthSeaGermanicdialects3originspokenalongthecoastsofFrisiaLowerSaxonyJutlandandSouthernSwedenbyGermanictribesknown4theAnglesSaxonsandJutes.LaterOldEnglishwasstronglyinfluencedbytheNorthGermaniclanguageNorsespokenbytheVikingswhosettledmainlyinthenorthwest.ThemostfamousworkfromtheOldEnglishperiodistheepicpoemBeowulfwrittenby5unknownpoet.OldEnglishisverydifferentfromModernEnglishanddifficultforthe21st﹣centuryEnglishspeakerstounderstand. Forthe300yearsfollowingtheNormanConquestin1066theNormankingsandthenobilityspokeonlya6varyofFrenchcalledAnglo﹣Norman.Englishcontinuedtobethelanguageofthecommonpeople.TheNormaninfluence7strongthecontinualevolutionofthelanguageoverthefollowingcenturiesresultingin8isnowreferredtoasMiddleEnglish.Andoneofthebest﹣knownworksfromtheMiddleEnglishperiodisGeoffreyChaucer'sTheCanterburyTales. Fromthelate15thcenturythelanguagechangedintoEarlyModernEnglishoftendatedfromtheGreatVowelShift.EnglishiscontinuouslyabsorbingforeignwordsespeciallyLatinandGreekcausingEnglishtohavethelargestvocabularyofanylanguageintheworld.Bythelate18thcenturytheBritishEmpirehadspedthespreadofEnglishthroughitscoloniesandgeopoliticaldominance.CommercescienceandtechnologydiplomacyartandformaleducationallcontributedtoEnglish9becomethefirsttrulygloballanguage.Astherearemanywordsfromdifferentlanguagestheriskofmispronunciationishigh.In1755SamuelJohnsonpublishedhisADictionaryoftheEnglishLanguage10introducedastandardsetofspellingconventionsandusagenorms.
6分Inahotsummerthere'snobetterplacethanaUKbeach﹣theseshoresofferwalksandwildlifepicnicsandrockpools. RunswickBayNorthYorkshir Itisapopulardestinationforrockpoolerswalkersandhunters.Manyofthehomesarenowholidayaccommodationslinkedbypathsandwalkwaysratherthanstreets.TheRoyalHotelattheheartofthevillageoffershomemadecakesandcoffeealongsideasimplebuttastybarmenuandlocalBlackSheepbitterondraft. StayinCastleHousesleepssixthreenightsfrom£500atthetopofthevillagehassweepingviewsofthebayfromacomfortablewindowseat. SouthShoreBrownseaIslandDorset ReachedbyferryfromthemoneyedshoresofSandbanksBrownseaIslandisapocketofsafewildernessinPooleharbour.FamousforitsredsquirrelpopulationandasthesiteofBaden﹣Powell'sfirstScoutcampitsmixtureofwoodlandwildlandandpondssuitsadayofexplorationandadventure.Pushyourselfintothesandybanksandenjoyviewsacrosstheharbourinthecompanyofvariousseabirds. StayinNationalTrust﹣ownedCustomHouseontheseaportsleepsfourthreenightsfrom£622offersarealBrownseaexperience. KingsgateBayBroadstairsKent ThelackofaconvenientcarparkmeansthatKingsgateBaybetweenMargateandBroadstairsisquieterthanotherbeachesontheThanetcoast.AshortwalkfromthecarparkatneighboringJossBaypopularwithsurfershoweverwilltakeyoutothisshelteredsandybaywithitsseacaves.Itisalsoasafeplacetoswimandcanoe. StayintheBotanyBayHotelfamilyroomsfrom£80B&Bhassomedog﹣friendlyrooms. 1Whichofthefollowingsuitsyoumostifyouareananimallover A.JossBay. B.KingsgateBay. C.SouthShore. D.RunswickBay. 2Whatcanwelearnfromthepassage A.RunswickBaycanbeaccessiblebyferry. B.YourpetdogsareadmittedintotheBotanyBayHotel. C.TherearelotsofconvenientcarparksforvisitorsatKingsgateBay. D.YoucanenjoyhomemadecakesduringyourstayintheBotanyBayHotel. 3Whatkindofpeopleisthetextmainlywrittenfor A.Scientists. B.Students. C.Tourists. D.Artists.
爷爷的腿部肌肉经常抽搐血液中含量偏低的离子可能是
如图表示物质跨膜运输的一种方式下列物质运输过程利用该方法进行的是
8分SixmonthsafteraChinesescientistwaswidelycondemnedforhelpingtomaketheworld'sfirstgene﹣editedbabiesheremainsoutofpublicviewandnewinformationsuggeststhatothersmaybeinterestedinundertakingthesamekindofworkoutsidetheUnitedStates. AclinicintheUnitedArabEmiratescityofDubaiemailedscientistHeJiankuitoseektrainingingeneeditingStanfordUniversitybioethicistDr.WilliamHurlbutsaidaheadofaspeechTuesdayattheWorldScienceFestivalinNewYork. HurlbutwhoseadviceHeoftensoughtsaidHetoldhimthatscientistsfrommultiplecountriesandfamilieswithinheritedhealthproblemshadmessagedsupportandinterestinalteringthegenesofembryos胚胎topreventortreatdisease.HurlbutgaveTheAssociatedPresstheemailtheDubaiclinicsenttoHeinDecemberbutdecidedtohidetheclinic'sname. ItrevealswhateagernessthereisouttheretousethistechnologyandtheneedforsomesortofpracticalgovernanceofitHurlbutsaid. JenniferDoudnaaUniversityofCaliforniaBerkeleyco﹣inventoroftheCRISPRgene﹣editingtoolthatHeusedsaidthatshealsohasheardofotherswhowanttoeditembryos. Ithinkthey'reentirelycredibleshesaidofsuchreports.DoudnawhowasalsoaspeakerattheNewYorkfestivalsaidthefieldneedstofocusonsettingspecificprinciplesforhowandwhensuchworkshouldproceed. Thetechnologyisfranklyjustnotreadyforclinicaluseinhumanembryosalthoughresearchshouldcontinueshesaid.DoudnaispaidbytheHowardHughesMedicalInstitutewhichalsosupportsAP'sHealthandScienceDepartment. ScientistsandpolicyleadershavebeendebatinghowtosetinternationalstandardsorcontrolssinceHeclaimedinNovemberthathehadalteredthegenesoftwingirlsatconception怀孕totrytohelpthemresistpossiblefutureinfectionwiththeAIDSvirus. EditingembryosisoutlawedinmanycountriesbecauseitrisksdamagingothergenesandtheDNAchangescanbepassedtofuturegenerations.ManyscientistshavecondemnedHe'sworkandattentionhasfallenonotherscientistswhokneworstronglysuspectedwhatHewasdoing. 1WhatistheemailtheDubaiclinicsenttoHeJiankuiprobablyabout A.Expectationofgeneeditingtraining. B.Inheritedhealthproblems. C.Eagernesstousethetechnology. D.Practicalgovernanceinneed. 2WhydoesDoudnathinkthatthereisneedtoputgovernanceongene﹣editing A.Becausethereisdecreasingeagernesstousethetechnologyofalteringthegenesofembryos. B.Becausetheclinicuseofthetechnologyinhumanembryosisstillininadequatepreparation. C.Becausetheevidenceshowingpeople'sneedofthetechnologyisjustcompletelyunbelievable. D.Becausesomescientistsordoctorsmayusethetechnologywiththeaimofmakingprofits. 3Whatcanweinferfromthepassage A.HeJiankuiusedtoheldconsultationswithHurlbutongeneediting. B.It'sstillillegaltoeditthegenesofembryosinmanycountries. C.Howtosetinternationalstandardsorcontrolsovergene﹣editingisstillinheateddebate. D.DoudnaassistedHeJiankuibyprovidingatooltoalterthegenesoftwingirlsatconception. 4Whichofthefollowingcanbethebesttitleofthispassage A.HeOpensaNewAgeinGenetics B.TheFirstGene﹣editedBabiesintheWorld C.ANewMethodofPreventingdiseases D.Gene﹣editedBabiesDebateContinues
15分OnApril15thFrance'sworld﹣famousNotre﹣damedeParisCathedralcaughtfire.Flamescouldbeseenrisingthroughthetopofthemonument.1ittallnarrowspire塔尖wassoondestroyed. TheCathedral2datesbacktothe12thcenturyisoneoftheworld'smostfamoustourist3attraction.About12millionpeoplevisititeachyear.Itsitsin4centerofParisalongtheSeinesRiver. ThemayorofParisAnneHidalgowroteonTwitterMondayA5terrorfireisunderwayatNotre﹣damedeParisCathedral.HeaddedthatParisfirefighterswerestilltryingtocontainthefire.Sheurgedpeople6stayawayfromthearea.FrenchPresidentMacrondelayeda7schedulespeechandarrivedatthesceneofthefireMondaynight.Thecauseofthefirewasnot8immediateknown. Afterthefireworkerssoongotdown9restoringpartsofNotre﹣dame.Partsofthemonument10surroundbyametalandwoodsupportstructure.BesidestheCathedral'sbronzestatueswereremovedforrepairs.
8分Wetendtobelievethatolderpeoplearemorepositiveandyoungerpeoplearemoresensitivetosocialcues暗示. Recentlyscientistsinvestigatedthisideabytesting10000menandwomen.Theywantedtoseeifageaffectedaperson'sabilitytoidentifysubtlefacialemotionssuchasfearandanger. TheresearchersusedaWeb﹣basedplatformtocollectdata.Itshowedtheparticipantstwoheadshotsofrandompeople.Theywerethenaskedtoidentifywhichsubjectwasangrierhappierormorefearful.Theresearchfoundthatyoungerpeoplewereabletobetteridentifyangryandfearfulfacialcuesthanolderpeople. WeknowfromstudiesthattheeverydayexperiencesofanadolescentaredifferentfromanolderpersonbutwewantedtounderstandhowtheseexperiencesmightbelinkedwithdifferencesinbasicemotionunderstandingwroteLauraGerminethestudy'sseniorauthor. Butwhatisitthatmakesyoungpeoplemoresensitive Thisistheexactagewhenyoungpeoplearemostsensitivetoformsofnegativesocialcuessuchasbullying欺凌LaurenRutterthestudy'sleadauthortoldScienceDaily.Thenormaldevelopmentofangersensitivitycancontributetosomeofthechallengesthatariseduringthisstageofdevelopment. Onthecontraryacrossthewhole10000﹣personsurveyresearchersfoundnodecreaseinthesenseofhappinessamongolderparticipantsandthesefindingsfitwellwithotherresearchesshowingthatolderadultstendtohavemorepositiveemotions. Nowtheteamisworkingtowardanewstudythatexamineshowemotionalsensitivityisrelatedtodifferentaspectsofmentalhealthsuchasanxietyanddepression. 1Whatcanweknowfromthepassage A.Olderpeoplearemoreallergictosocialcues. B.TheresearchersgaineddatafromtheInternet. C.Olderpeoplearelesslikelytoidentifyhappinessintheresearch. D.Adolescents'sensitivitytonegativesocialcuesdoesharmtotheirdevelopment. 2Howwastheresearchcarriedout A.Byassumingandanalyzing. B.Byquestioningandtracing. C.Byreasoningandconcluding. D.Bysurveyingandcollectingstatistics. 3Whatsectionofanewspaperisthepassageprobablytakenfrom A.Technology. B.Investigations. C.Education. D.Lifestyle. 4Whatistheteamplanningtofindoutnext A.Therelationshipbetweenemotionsandexperiences. B.Theemotionaldifferencesbetweentheyoungandtheold. C.Theconnectionbetweensensitivityofemotionsandmentalhealth. D.Thedifferentresponsestosocialcuesbetweentheyoungandtheold.
1分TheMid﹣autumnFestivalwasoriginallyoindifferentwaysincelebrationoftheirgoodharvest.
10分EleanorRooseveltoneofthemostsuccessfulinfluentialandbelovedwomeninAmericanhistoryoncesaidthatshehadoneregretshewishedshehadbeenprettier.Whohasn'tfeltthesameway1Toovercomethemwespendbillionsofdollarseveryyearoncosmeticsdietproductsfashionandsoon. WhydowecaresomuchabouthowwelookBecauseitmatters.Becausebeautyispowerful.Becauseevenwhenwelearntovaluepeoplemostlyforbeingkindandwiseandfunnywearestillmovedbybeauty.Nomatterhowmuchweargueagainstitbeautyhasgreatinfluenceonus.2 AristotlesaidBeautyisagreaterrecommendationthananyletterofintroduction.3Wesimplytreatbeautifulpeoplebetterthanwedoothers.Attachaphotographofabeautifulauthortoanessayandpeoplewillthinkthatitismorecreativeandmoreintelligentlywrittenthanexactlythesameessayaccompaniedbythephotoofahomelyauthor. Oursensitivitytophysicalbeautyisnotsomethingwecancontrolatwill.4ExperimentsconductedbypsychologistJudithJ.Langloisshowedthatevensmallbabiesprefertolookatattractivefaces.BeforetheyhavemetasinglesupermodelbeforetheyhavewatchedasingleTVshowbeforetheyhaveopenedupasinglefashionmagazinetheyaredrawntothesamefaceswhichadultshavejudgedtobeattractive. 5JustasNancyEtcoffsaysWehavetounderstandbeautyorwewillalwaysbeenslavedbyit.Ifyouaimtobewiseandkindandfunnyitdoesn'tmeanthatyoucan'talsotryyourbesttolookbeautiful.There'snoreasontofeelguiltyaboutbeingmovedbybeauty'spower.Itmovesusall. A.Wearebornwithit. B.It'snotfairbutit'strue. C.Thereissimplynoescape. D.Itactuallydoesnotmakeanysense. E.Weareallproudofourachievements. F.Wearealltooawareofourphysicalimperfections. G.Howevertherearemoreimportantthingsinlifethanbeauty.
25分汉族成年礼延续数千年历史悠久.至满清入关后满清统治者一纸令下终结了绵延了几千年的成人礼然而现在正在逐渐恢复且越来越流行.假定你是高三学生李华学校将于下周五晚上七点在阶梯教室举办成人礼活动.请你代表学生会写一封邮件给外教Tom邀请其参加本届成人礼活动并简要介绍活动时间地点及流程等. 注意 1.词数100左右 2.可以适当增加细节以使行文连贯 3.开头与结尾已给出不计入总词数. 参考词汇成人礼thecoming﹣of﹣ageceremony DearTom I'mLiHuaoneofyourstudents.Onbehalfofthestudents'union Yours LiHua
10分Three﹣quartersoftheworld'scoffeefarmsdestroyforesthabitattogrowcoffeeinthesunandusuallyuseharmfulpesticides杀虫剂and1chemicalthatpoisontheenvironment.Whenforestsdisappearmigratory迁徙的songbirdsdisappeartoo.Inordertodealwithincreasingpopulationandhabitat2loseSmithsonianscientistscreatedtheBirdFriendlycertification证书. BirdFriendlycoffeesareshade﹣grownmeaningthecoffeeisplantedundertreesratherthanonthelandthat3clearofallotherplants.Coffeeexpertssayshade﹣growncoffeestaste4goodbecausethebeansripenslowerthancoffeegrowninthefullsun5resultinarichermorecomplexflavor味道.BirdFriendlycertifiedcoffeesgrowunderbio﹣diverseshadethatprovideshabitatformigratorysongbirdsandotherwildlifestorescarbon6fightsclimatechange.BirdFriendlycoffeesarealsocertifiedorganicmeaningtheyaregrownwithoutpesticides7isbetterforpeopleandfortheplanet. BirdFriendlyproducerscanalsoearnmorefortheircrops.Thewoodandfruittreesonshadecoffeefarmsprovideadditionalincome8farmers.EverycupofBirdFriendlycoffeeboughtrewardsthesefarmerswithalittlemoremoneyfortakinggoodcareoftheenvironmentandencouragesthemtocontinue9protectBirdFriendlyhabitat. YoucanbuyBirdFriendlycertifiedcoffeesthroughouttheworldandprotectwildlifeandhabitatwitheverycup.Findastoreorcafenearyouorbetteryethaveit10delivertoyourdoorwhenyouorderonline.
艾弗里等人为了弄清转化因子的本质进行了一系列的实验.下图是他们所做的一组实验则三个实验的培养皿中存在的两种菌落的是 实验一R型菌+加热杀死的S型菌的DNA+RNA酶→ 实验二R型菌+加热杀死的S型菌的DNA+DNA酶→ 实验三R型菌+加热杀死的S型菌的DNA+蛋白酶→
1分Thechildshowedgreatinterestineverythinginthemuseumandhekeptaskingalotofquestionsc.
8分AccordingtoarecentstudyanewgeneticallymodifiedricecanpreventinfectionsofHIVthevirusresponsibleforthediseaseAIDS. Thestudyreportsthenewly﹣developedriceproducesproteinsthatattachdirectlytotheHIVvirus.Thisprocesspreventsthevirusfrommixingwithhumancells.Thescientistssayitcanremovetheeffectofthevirusandblockitsspreading. TheJointUnitedNationsProgramonHIV/AIDSreportsthatworldwidenearly37millionpeoplewerelivingwithHIVin2017.Theorganizationsaysthelargestnumberofthoseareindevelopingcountries.Nearlytwo﹣thirdsofHIVcasesareinAfrica.NowthereisnocureforHIV/AIDSthoughtherehavebeendevelopmentsinoraldrugtreatmentstoslowtheprogressionofthedisease. Thenewstudypredictstherice﹣basedmethodwillleadtolong﹣termuseoftheanti﹣HIVtreatmentacrossthedevelopingworld.Researcherssaidthegroundbreakingdiscoveryisrealisticallytheonlywaythatanti﹣HIVcombinationtreatmentscanbeproducedatacostlowenoughforthedevelopingworld. Theysaytheeasiestandmostcost﹣effectivewaytousethericewillbetomakeitintoacreamtobeputontheskin.TheHIV﹣fightingproteinscanthenenterthebodythroughtheskin.Peopleallovertheworldcouldgrowthericeandmakethecreamthemselves.Thiswouldpreventthecostandtravelrequiredformanypatientstoreceivetreatmentsandmedicine. Theprocessofchangingthegeneticstructureoffoodcropshasbeendebatedforsometime.Criticsofgeneticallyengineeredcropsbelievetheycanharmpeople.Thescientificteamsaysfurthertestingisneededtoensurethatthegeneticengineeringprocessdoesnotproduceanyadditionalchemicalsthatcouldbedangeroustopeople. 1Whatdoestheauthorintendtodoinparagraph3 A.StresstheurgencyofHIVtreatments. B.ProvidesomedataaboutHIV. C.RemindreadersofHIVprevention. D.IntroduceHIVtothepublic. 2Inwhichwaywillthericebeusedatthelowestcost A.Bytransformingitintoproteins. B.Byaddingittoanoraldrug. C.ByattachingittotheHIVvirus. D.Byprocessingitintoacream. 3Whatcanweinferaboutthegeneticengineeringprocess A.ItcanpreventinfectionsofHIV. B.Itcanproducedangerouschemicals. C.Itstillrequiresperfecting. D.Itappliestothedevelopedworld. 4Fromwhichisthetextprobablytaken A.Abiologytextbook. B.Ahealthmagazine. C.Asocialwebpage. D.Afirstaidbrochure.
能发生基因重组的过程是
如图为生物体内核酸的基本组成单位﹣﹣核苷酸的模式图DNA和RNA在核苷酸上的区别在于
2分她对于教书职业的全身心投入给我们所有人留下了很深的印象. theteachingcareerhasleftallofus.
细胞中ATP在有关酶的催化作用下释放出大量能量并转化成
25分假定你是阳光国际学校的学生李华你校将迎来20周年校庆.校史馆拟从本校学生中招募若干名英语解说员.请你根据要求用英语写一封信申请该职位内容主要包括 1.写信目的 2.申请理由 3.期待回复. 注意1.词数100左右开头和结尾已给出不计入总词数. 2.可适当增加细节以使行文连贯. DearSirorMadam Yourssincerely LiHua
如图是动物细胞减数分裂某一时期的示意图.关于该细胞的叙述正确的是
10分 Understandingspecialeducation WhatwillappearinyourmindwhenyouthinkaboutspecialeducationYoumightpicturechildrenwithdisabilitiesspendingthedayinadifferentclassroomseparatedfrommostofthekidsoftheirage.1Butasthefieldofspecialeducationhasmovedforwarditmuchhaschanged. Specialeducationtodayisstillfocusedonhelpingchildrenwithdisabilitieslearn.2Infactfederallawrequiresthatstudentswhoreceivespecialeducationservicesbetaughtalongsidetheirnon﹣disabledpeersasmuchaspossible.Forexamplesomestudentswithreadingdisordermayspendmostofthedayinageneraleducationclassroom.Theymayspendjustanhourortwoinaresourceroomworkingwithaspecialistonreadingandotherskills. Thechangesarealsoreflectedinotheraspects.3It'stailored量体裁衣tomeeteachstudent'sneeds.Specialeducationreferstoarangeofservicesthatcanbeprovidedindifferentwaysandindifferentsettings.Ifyourchildqualifiesforspecialeducationhe'llreceiveindividualizedteachingresources.Thespecialistswhoworkwithyourchildwillfocusonhisstrengthsaswellashischallenges. 4Makingthecurriculumaccessibletostudentswithdisabilitiesisalotlikemakingbuildingsaccessibletopeopleinwheelchairs.Schooldistrictshaveaprocessinplacetodeterminewhichstudentsarequalifiedforspecialeducation.Thisprocessinvolvesasystematicevaluationthatlooksatthewayyourchildthinks.5Ifthedistrictagreestoevaluateyourchildthetestingwillbeconductedatnocosttoyou. A.Accessisanimportanttermineducation. B.Youoryourchild'sschoolcanrequestanevaluation. C.Thismayhavebeenthenormalsituationinthepast. D.Thereisnoonesizefitsallapproachtospecialeducation. E.Toclearthelearningbarriersisthepurposeofspecialeducation. F.Butthisnolongermeansplacingkidsinaspecialclassroomalldaylong. G.Thequalificationforspecialeducationisassessedbylocalschooldistricts.
“不是花中偏爱菊此花开尽更无花”观赏菊有很多漂亮的品种这些品种的产生主要是来自
蛋白质合成过程中氨基酸分子脱水缩合形成的化学键是
1分None'sheaddoesnotalwaysmeansshowingagreementunderstandingorapproval.
人类ABO血型和基因型的如表所示.某对夫妻血型分别是B型和O型后代的血型可能是
热门题库
更多
高三上学期数学
高一下学期英语
教案备课库
高一上学期生物
高一下学期生物
高二上学期数学
高二上学期物理
高二上学期英语
高二上学期生物
高二下学期数学
高二上学期化学
高二下学期物理
高三下学期物理
高三上学期物理
高三上学期生物
高三上学期化学