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函数（其中e为自然对数的底数）的图象大致为（ ）
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高一下学期数学《》真题及答案
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函数其中e为自然对数的底数图象的大致形状是
已知函数fx=ex﹣ax+a其中a∈R.e为自然对数的底数.1讨论函数fx的单调性并写出对应的单调区
函数y=x2•e﹣|x|﹣1其中e为自然对数的底数的图象大致是
已知函数fx＝lnx＋e－ax－b其中e为自然对数的底数.若不等式fx≤0恒成立则的最小值为.
函数fx=其中e为自然对数的底数的图象大致为
已知函数 f x = e x - 2 x - 1 其中 e 为自然对数的底数则 y
@B.
@D.
设fx是定义在R.上的函数其导函数为f′x若fx+f′x＞1f0=2017则不等式exfx＞ex+2
（﹣∞，0）∪（0，+∞）
（0，+∞）
D
函数fx=其中e为自然对数的底数的图象大致为
函数y=4cosx﹣e|x|e为自然对数的底数的图象可能是
函数其中是自然对数的底数的大致图像为
2015年·省实验二模已知函数fx＝2aexa＞0e为自然对数的底数的图象与直线x＝0的交点为M函数
定义在R.上的函数fx满足f′x＞1﹣fxf0=6f′x是fx的导函数则不等式exfx＞ex+5其中
函数fx＝e为自然对数的底数的值域为
(－1，1)
(－1，＋∞)
(－∞，1)
(－1，0)∪(0，1)
设函数为自然对数的底数的图象与直线ex+y=0相切于点A.且点A.的横坐标为1.Ⅰ求ab的值Ⅱ求函数
已知定义在R.上的函数fx满足fx+f'x>1f0=4则不等式exfx>ex+3其中e为自然对数的底
定义在R上的函数fx满足f′x＞1﹣fxf0=6f′x是fx的导函数则不等式exfx＞ex+5其中e
已知直线与函数其中为自然对数的底数的图象相切则实数的值为切点坐标为.
经过原点且与函数为自然对数的底数的图象相切的直线方程为
已知函数其中e为自然对数的底数为偶函数则实数a的值为．
求值其中e为自然对数的底数
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Imaginespending1182hoursworkinghardandreceivingnoencouragingwords.ThiswasthesituationIfoundmyselfinasI1anewswimteamwithaRussiancoach.Asalong﹣timeswimmerIwasusedtoreceivingplentifulpraisesand2speechesfrommycoaches.3afterpracticingforafewweeksInoticedIdidnothearany4likeyou'realmosttherecongratulationsoryou'redoinggreatthat5methroughthosehardpractice.Ireceivedscoffs嘲笑whenIwasexpecting6andpraises.TomeVladimirseemedlikea7man. AsIwastryingtounderstandhimthroughhisheavyaccentIrealizedthatVladimirhadbeentrainedand8bythecultureinRussiaandthatledtohisdifferentcoachingstyleandunusuallyhigh9.Hespentover1182hours10receivingnopraisesandwassimplyexpectedto11.Thismethodofcoachingthatseemedsoforeigntomewasfromwhathe12leavinghomeattheageoftwelveandeventuallywinninganOlympicmedal. Ibegantoappreciatehis13togiveoutpraises.Hehadamuchdifferentideaonhowbesttocoachandmotivateswimmers.Hedidnotfeelthe14tosaycomplimentssincehebelievedoneshouldbe15withoutthesepraises. Itwasthefactthathewassodifferentfrommypreviouscoachesthatmadehim16.HeforcedmetoreallythinkaboutwhyIwasswimming.Ilearnedtoswimnotfor17buttofindthemotivation.Itbecamecleartomethatthe18ofexperiencingvariouscoachingstylesisthateachonecanbringoutthebestinmeifIlearnfromthese19.Varioustrainingstylesmaybe20tomeatthestartbutcanhelpmegrowinmanyways. 1A.founded B.joined C.interviewed D.trained 2A.typical B.practical C.positive D.polite 3A.Therefore B.Otherwise C.Moreover D.However 4A.whistles B.words C.jokes D.news 5A.helped B.followed C.forced D.checked 6A.promises B.instructions C.smiles D.surprises 7A.funny B.cold C.poor D.brave 8A.replaced B.judged C.frightened D.influenced 9A.profits B.evaluations C.expectations D.scores 10A.thinking B.dreaming C.seeking D.swimming 11A.perform B.fail C.listen D.remember 12A.wentthrough B.gaveup C.carriedout D.keepon 13A.proposal B.removal C.refusal D.approval 14A.possibility B.need C.duty D.right 15A.advised B.ignored C.accepted D.encouraged 16A.valuable B.effective C.reasonable D.creative 17A.fame B.prize C.praise D.power 18A.pleasure B.risk C.chance D.benefit 19A.differences B.lessons C.mistakes D.stories 20A.similar B.uncomfortable C.important D.impossible
30分ItwasournormalThursdaymorningbusinessmeetingatourreal﹣estateoffice.Beforethemeetingwe41aroundthetableasusualwithourcoffee.Heanewfaceinaroomfullofoutgoingsalespeoplestoodasidelookingalittleshyand42.Iwentoverto43withhim.Maybehewasanew44? HesaidhewasaMarinejustbackfromKabulAfghanistan.Ourofficeandalocalschoolhadbeen45bysendingletterstohimandothertroopswhichhehadpostedontheAmericanEmbassydoorInKabul. Hecametoourofficetothankusforoursupportforallthe46duringthose47times.Icouldn'tbelievemyears.Hewantedtothankus?Weshouldbethankinghim.Buthow?HowcanIevershowhimmy48? Attheendofthesalesmeetinghesteppedforward49.Hestilllookedlikeashyl5﹣year﹣oldboy. ThisyoungMarinethisclean﹣facedboyhadno50infacingbulletsonthebattlefieldsothatImightenjoythefreedomtolivemy51life.Suddenlythemost52concernsofmylifeandcareerseemedasnothingandmyself﹣satisfactionflewrightoutofthewindowwithhiseveryword. He53forwardtoourmanagerand54aproperlyfoldedAmericanflaginhishands.Ithad55overtheEmbassy.Hesaidthanksagain.AsI56Isawredfaceseverywhereholdingbacktears. In57homesinsmalltownskidslikehimaregrowingup58tobeanAmerican.We'llframetheflagandputitinthehall.TheyoungAmericanMarineonlycametomyofficeonceandforjustafewminutesbutI59Iencounteredgreatnessinthefleshandinthetwinklingofaneyemylifewasforever60. 41.A.paced B.saw C.hung D.talked 42.A.strange B.brave C.awkward D.scared 43.A.accompany B.chat C.sit D.play 44.A.marine B.customer C.manager D.salesman 45.A.supportive B.positive C.active D.attentive 46.A.donation B.letters C.money D.medicines 47.A.pitiful B.exciting C.wonderful D.tough 48.A.admiration B.appreciation C.expectation D.satisfaction 49.A.quietly B.happily C.livelily D.shamefully 50.A.intention B.courage C.hesitation D.relation 51.A.fruitful B.painful C.regretful D.peaceful 52.A.stressful B.confusing C.academic D.unrealistic 53.A.looked B.pushed C.walked D.struggled 54.A.exchanged B.received C.placed D.rewarded 55.A.run B.fought C.manufactured D.flown 56.A.lookedout B.lookedaround C.lookedup D.lookedaway 57.A.usual B.ordinary C.crowded D.wealthy 58.A.proud B.anxious C.courageous D.ashamed 59.A.promised B.insisted C.expected D.realized 60.A.understood B.changed C.maintained D.ruined
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30分FifteenyearsagoItookasummervacationinLecceinItaly.AfterclimbingupahillforafullviewoftheblueseaIpausedtocatchmy1andthenpositionedmyselftotakeaphoto. UnfortunatelyjustasItookoutmycameraawomanapproachedfrombehindand2herselfrightinfrontofmy3.Likemeshewasheretostopsighandappreciatethescenery. 4asIwasafterabout15minutesmycamerascanningthesunandreviewingtheshotIwould5takeIwasupset.ShouldIaskherto6sothatIcouldtakejustonepictureofthelandscape?SureIcouldhaveaskedherbutsomething7medoingso.Sheseemedso8inherobservation.Ididn'twanttomesswiththat. Another15minutespassedandIgrewmore9.Thewomanwasstillthere.Idecidedtotakethephoto10.AndnowwhenIlookatitIthinkher11inthephotoiswhatmakestheimage12.Thelandscapebeautifulonitsownsomehowcomestolifeandbreathes13thiswomanisengagingwithit.Thisphotowiththe14beautythatunfoldedbeforemeandthewomanwho15itnowhangsonthewallinmybedroom.Whatwouldshethinkifsheknewthatherfigureiscaptured捕捉and16onastrangersbedroomwall?AbedroomafterallisaveryprivatespaceinwhichawomanIdon'tevenknowhasbeenkeptforever.Insomewaysshehasbeen17inmyhouse. Perhapsweallliveineachother'sspace.Perhapsthisiswhatphotosareforto18usthatweallappreciatebeautyandthatweallshareacommon19forpleasureandconnection. Thisphotoisareminderacapturedmomentanunspoken20betweentwowomenseparatedonlybyathinsquareofglass. 1A.sight B.breath C.way D.attention 2A.planted B.found C.lost D.enjoyed 3A.concern B.photo C.view D.direction 4A.Cautious B.Curious C.Casual D.Patient 5A.eventually B.randomly C.extremely D.hurriedly 6A.backaway B.goover C.movealong D.stayout 7A.caught B.sent C.got D.prevented 8A.anxious B.content C.quiet D.confident 9A.excited B.annoyed C.worried D.confused 10A.anyway B.somehow C.instead D.indeed 11A.beauty B.behavior C.determination D.presence 12A.puzzling B.disappointing C.interesting D.boring 13A.unless B.because C.although D.until 14A.strange B.regrettable C.distant D.unique 15A.ruined B.created C.missed D.discovered 16A.protected B.observed C.frozen D.drawn 17A.hanging B.living C.shining D.wandering 18A.promise B.tell C.convince D.remind 19A.respect B.plan C.desire D.sense 20A.conversation B.result C.trust D.love
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﹣HowmuchdoyouknowaboutthetradewarbetweenChinaandAmerica? ﹣Wellthenewspapersitinthepastfewweeks. A.report B.willreport C.reported D.havebeenreporting
IhearthatMrsLinhasbeenwiththetranslationofaFrenchnovelthesemonths. A.seized B.devoted C.occupied D.attracted
Giveyourselfatest.Whichwayisthewindblowing?Howmanykindsofwildflowerscanbeseenfromyourfrontdoor?Ifyourawarenessisassharpasitcouldbeyou'llhavenotroubleansweringthesequestions. Mostofusobservedmuchmoreaschildrenthanwedoasadults.Achild'sdayisfilledwithfascinationnewnessandwonder.Curiositygaveusallanaturalawareness.Butdistinctionsthatweresharptousaschildrenbecomeunclearwearenumb麻木的tonewstimulation刺激newideas.Relearningtheartofseeingtheworldaroundusisquitesimplealthoughittakespracticeandrequiresbreakingsomebadhabits. Thefirststepinawakeningsensesistostoppredictingwhatwearegoingtoseeandfeelbeforeitoccurs.Thisblocksawareness.OnechillynightwhenIwashikingintheRockyMountainswithsomestudentsImentionedthatweweregoingtocrossamountainstream.Thestudentsbegancomplainingabouthowcolditwouldbe.Wereachedthestreamandtheyunwillinglywalkedahead.Theywerealmostknee﹣deepwhentheyrealizeditwasahotspring.Latertheyalladmittedthey'dfeltcoldwateratfirst. Anotherblocktoawarenessistheobsession痴迷manyofushavewithnamingthings.Isawbirdwatcherswhospottedabirdimmediatelylookeditupinfieldguidesandsaidaruby﹣crownedkingletandcheckeditoff.Theynolongerpaidattentiontothebirdandneverlearnedwhatitwasdoing. Thepressuresoftimeanddestinationarefurtherblockstoawareness.Iencounteredmanyhikerswhowereheadedtoadistantcamp﹣groundwithjustenoughtimetogettherebeforedark.Itseldomoccurredtothemtowanderabittotakeamomenttoseewhat'saroundthem.Iaskedthemwhatthey'dseen.Ohafewbirdstheysaid.Theyseemedbentontheirdestinations. Natureseemstounfoldtopeoplewhowatchandwait.Nexttimeyoutakeawalknomatterwhereitistakeinallthesightssoundsandsensations.Wanderinthisframeofmindandyouwillopenanewdimensiontoyourlife. 1AccordingtoParagraph2comparedwithadultschildrenaremore. A.anxioustodowonders. B.sensitivetoothers'feelings. C.likelytodevelopunpleasanthabits. D.eagertoexploretheworldaroundthem. 2WhatideadoestheauthorconveyinParagraph3? A.Toavoidjumpingtoconclusions. B.Tostopcomplainingallthetime. C.Tofollowtheteacher'sadvice. D.Toadmitmistakeshonestly. 3Thebirdwatchers'behaviorshowsthatthey. A.areverypatientintheirobservation. B.arereallyfascinatedbynature. C.careonlyaboutthenamesofbirds. D.questiontheaccuracyofthefieldguides. 4Inthepassagetheauthorintendstotellusweshould. A.filloursensestofeelthewondersoftheworld. B.getridofsomebadhabitsinourdailylife. C.openourmindtonewthingsandideas. D.tryourbesttoprotectnature.
1分Yourmkitchenreallyneedstobecleanedthoroughly.
suchdifficultworkbeforehefeltitwasterriblyhardforhim. A.Nothavingdone B.Havingnotdone C.Nothavingbeendone D.Nothavedone
Whentodangermentendtoincreasebloodpressurenervousoranxious. A.exposedfeeling B.exposedfelt C.exposingfelt D.exposingfeeling
2分ThenthatDollyhadbecomeseriouslyill.CloningscientiststofindthatDolly'sillnessweremoreappropriatetoamucholderanimal.
10分ToreachonelocalrestaurantabowlofChinesenoodlestravelsacrosstheEurasiancontinentandsettlesontheScandinavianPeninsula1placebeforehungrypeoplevisitingthehomeofSantaClaus. AChinesemanbroughtlocaldishesreganmianandhotpottoRovaniemiFinlandbecomingthefirstChinese2openanrestaurantintheArcticCircle. HuLiangfromCentralChina'sHubeiprovincemigratedtoFinlandaftergraduationat21.Fortwelveyearhe3seemoreandmoreChinesetouristsvisitingthecountrytoenjoythewinterholidayAuroraBorealis北极光﹣andofcoursethepurported传说的homeofSantaClaus. Chinesepeoplearebecoming4richandmoreinternational.5hasnotchangedistheir6stomach.SoImade7decisiontoopentherestaurant. Hu'srestaurantservesreganmianatraditionalWuhannoodledishwithspicyflavorandasesamepaste芝麻酱dressingaswellasChinesehotpot.HeordersfoodmaterialsfromChinesetradecorporationsthroughe﹣commenceplatformsand8e﹣paymentpopularamongChinesepeoplesuchasAlipay. 9apriceof15euro$18.45abowlofreganmianisnotonlygreatcomfortforChinesetouristswhohavetraveledfromthousandsofmiles10butalsoanattractiontolocalFinns.
1分Whynotkeepadictionaryathandforc?Youcanlookupintothedictionarywheneveryoumeetnewwords.
10分假定英语课上老师要求同桌之间交换修改作文请你修改你同桌写的以下作文.文中共有10处语言错误每句中最多有两处.错误仅涉及一个单词的增加删除或修改. 增加在缺词处加一个漏字符号^并在其下面写出该加的词. 删除把多余的词用\划掉. 修改在错的词下画一横线并在该词下面写出修改后的词. 注意1.每处错误及其修改均仅限一词 2.只允许修改10处多者从第11处起不计分. YoucanfindallkindsinformationinjustafewminuteontheInternet.It'slikegoingtoahugelibrarywithouthavingtowalkaroundtofindyourbooks.RecentlymanypeoplehadbeendiscussingthedangersoftheInternet.TheyhavebeenreportsinAmericaaboutpeopletryingtostealpersoninformationforbadpurposes.FindinformationOntheNetiseasy.Sonotallinformationisgoodtooursociety.Foranexampleyoucanfindsoinformationashowtokillpeople.Theproblemwillbecomelessseriousinthefuture.
Therearethreemainclassesofdrugshasadifferenteffectonthebody. A.allofwhich B.andallofthem C.eachofthem D.ofwhicheach
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