首页
试卷库
试题库
当前位置：
X题卡
>
所有题目
>
题目详情
如图，抛物线y＝﹣x2+bx+c与x轴交于A、B两点（A在B的左侧），与y轴交于点N，过A点的直线l：y＝kx+n与y轴交于点C，与抛物线y＝﹣x2+bx+c的另一个交点为D，已知A（﹣1，0），D...
查看本题答案
包含此试题的试卷
教案备课库《》真题及答案
点击查看
你可能感兴趣的试题
已知抛物线y=x2﹣2x+c与x轴交于A.B.两点与y轴交于C.点抛物线的顶点为D.点点A.的坐标为
如图抛物线y=x2+bx+c过点A.﹣4﹣3与y轴交于点B.对称轴是x=﹣3请解答下列问题1求抛物线
已知抛物线y=ax2+bx+ca≠0与x轴交于A.B.两点若点A.的坐标为﹣20抛物线的对称轴为直线
如图抛物线y=ax2﹣x+c与x轴相交于点A.﹣10B.30直线y=x+b与抛物线交于A.C.两点.
如图抛物线y=﹣x2+3x+4与x轴交于A.B.两点与y轴交于C.点点D.在抛物线上且横坐标为3.1
已知抛物线y=x2+bx+c与y轴交于点A与x轴的正半轴交于BC两点且BC=2S△ABC=3那么b=
已知抛物线py=ax2+bx+c的顶点为C.与x轴相交于A.B.两点点A.在点B.左侧点C.关于x轴
抛物线y=x2+bx+c过点2﹣2和﹣110与x轴交于A.B.两点与y轴交于C.点.1求抛物线的解析
如图已知抛物线的顶点为A14抛物线与y轴交于点B03与x轴交于C.D两点点P是x轴上的一个动点.1求
已知抛物线y=x2﹣2x+c与x轴交于A.B两点与y轴交于C点抛物线的顶点为D点点A的坐标为﹣10.
已知抛物线Y=-2/3X2+bx+c与x轴交于不同的两点Ax10和Bx20与y轴交于点C且x1x2是
如图抛物线y＝x2＋bx＋c与x轴交于A.B.两点B.点坐标为30与y轴交于点C.03.1求抛物线的
如图抛物线y=x2+bx+c与y轴交于点A.02对称轴为直线x=﹣2平行于x轴的直线与抛物线交于B.
没直线y=x+1与抛物线x2=4y交于AB两点则AB的中点到x轴的距离为
如图2-63所示抛物线y＝x2—2x－3与x轴交于A.B.两点A点在B.点左侧直线l与抛物线交于A.
如图已知抛物线的顶点为A14抛物线与y轴交于点B03与x轴交于CD两点.点P是x轴上的一个动点.1求
已知抛物线py=ax2+bx+c的顶点为C.与x轴相交于A.B.两点点A.在点B.左侧点C.关于x轴
已知抛物线y=﹣x2+2x+3与x轴交于AB两点点A在点B的左侧.1求AB两点的坐标和此抛物线的对称
已知抛物线L.y＝x2＋x－6与x轴相交于A.B.两点点A.在点B.的左侧并与y轴相交于点C.1求A
如图抛物线y=﹣x2+3x+4与x轴交于A.B.两点与y轴交于C.点点D.在抛物线上且横坐标为3.1
热门试题
更多
Don'tgiveuphalfwayandyouwillfindthesceneryismorebeautifulwhenyoureachthedestinationthanwhenyou. A.startoff B.havestartedoff C.startedoff D.willstartoff
在光明中学组织的全校师生迎“五四”诗词大赛中来自不同年级的25名参赛同学的得分情况如图所示．这些成绩的中位数和众数分别是
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.每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:把多余的词用斜线\划掉. 修改:在错的词下划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. MycousinLiMingtoldmehewouldbetakinghisdriver'stestagain.Heseemedconfidencealthoughhehavefailedhisfirstroadtest.Ifeltsympathyforhimthinkhemighthaveasamefearhedidlasttime.IencouragedhimthoughIwasnotsooptimisticabouttheirchances.Lateronhecalledsharethegoodnewsthathehadpassedit.Beforetheroadtestourfamilygatheredexcitedathishouse.Icongratulatedhimwithahug.Iaskedhimtodrivewithmeanywhereheliked.ThreeofourcousinpiledinwithusandwetookourfirstridewithLiMing.
foryearsofhardtrainingshewouldnotbestandingonthestagereceivinghugecheersandapplause. A.Itwerenot B.Ithadnotbeen C.Wereitnot D.Haditnotbeen
如图△ABC内接于⊙OAB为直径作OD⊥AB交AC于点D延长BCOD交于点F过点C作⊙O的切线CE交OF于点E． 1求证EC＝ED 2如果OA＝4EF＝3求弦AC的长．
Visuallanguageisaformofcommunicationthatusesvisualelements元素asopposedtoformalwrittenlanguagetoconveymeaningoranidea.Graphicacytheabilitytocommunicatevisuallyisconsideredasimportantasliteracyandnumeracytheabilitiestoreadandcount.Somepeoplearevisualthinkersusingthatpartofthebrainthatisemotionalandcreativetoprocessandgivemeaningtoinformation.Visualcommunicationcanfindexpressioninpaintings*drawingssymbolsorsimplylinesandshapesarrangedforaspecificeffect.Artisanexampleofvisuallanguage.Apaintingorsculpturecanconveyideasorarousespecifickindsofemotionalresponses.Itmayalsoexpressideasabouthistoricaleventsabstractconceptsdrsimplybeaboutthewaycertainshapesorforms'work'togetherorcreateacertaineffectonthemind.Someresearchersbelievethatdifferentpartsofthebrainrespondinuniquewaystocolorsandshapes.Pictograms象形文字andideograms表意文字aretypesofvisuallanguage.PictogramsarepicturesthataresimilartowhattheyrepresentTheyarestillusedtodaytocommunicateinformation.Manypeoplearoundtheworldarefamiliarwiththepictogramsindicatingsuchthingsasairportspublicfacilitiesandnon﹣smokingareasindicatedbyacigaretteinacirclewithalineacrossit.Ideogramsarepicturesthatrepresentideasandcanoftenbeunderstoodwithouttheaidofwrittenlanguage.Somescholarstrackmodenalphabetstopictures.Lettersareactuallyancientpicturesandwordsareaseriesofpictures・Modemalphabetlettersarenotonlyphonetic语音的symbolsbutarebasedonancientreligiousimagesandsymbols.Musivisualcommunicationisalsoapartofvisuallanguage.Thetermreferstomusiccreatedspecificallytoimprovethevisualexperienceoffilm.Itcorrespondstotheimagesbeingseenonthescreenandthemusicmayarouseasenseofterrorfearorotheremotions.Mostmoviegoersunderstandthelanguageofmusicalcluesshowingthatsomethingdramaticorimportantisabouttohappen.1Whatisvisuallanguageaccordingtothetext?A.Anideaconveyedbyartists.B.Anabilitytoreadandcount.C.Asystemusedtoarouseemotions.D.Awayofprocessingandexpressinginformation.2Whatmaybetheoriginofthemodemalphabetletters?A.Publicfacilities.B.Imaginarylines.C.Religiousimages.D.Livingconditions.3Whatcanwelearnaboutthemusicofafilmfromthelastparagraph?A.Itcanhelppredicttheplot.B.Avisualthinkercanmakeitbetter.C.Itoftenchangeswithouttheaudience'snotice.D.Itmakesthefilmmoreemotionalandcomplex.4Whatcanbethebesttitleofthetext?A.HowdoesVisualLanguageAffectLife?B.HowcanWeLearnVisualLanguage?C.WhatIstheOriginofLanguage?D.WhatIsVisualLanguage?
At15IhadstartedabandwiththreematesI'dmetatthelocalrehearsal排练rooms.WeplayedourfirstperformanceatapubinBolton.Wewere1butthecrowddidn'tseemtomindandafterafewmorelocalconcertswerecordedsomesongsandwestartedto2.Wesentouthundredsofdemo样本tapesin3ofourfavouritebandtheManics.AfterfinishingmyhighschoolwedrovetoLondontoplayattheDublinCastle.Onlyfivepeople4.Butwepersevered坚持andslowlythingsbeganto5.Twoyearsafterourfirstperformancewe6arecorddeal.We7endlesslyforthenexttwoyearsandbuiltupasmallbut8following.Attheendof2002theManics9ustoplaywiththem.Myteenagedreamshadcometrue;thebandIlookeduptoseemedto10ofus.We11performinginNewYorkandto5000peopleattheFujiRockfestivalinJapan.There'snogreater12thanthemomentyousteponstage.Thelightsdarkenthecrowdswells波浪起伏andthey13inapplauseasyoufinish.Ouralbumwas14in2003.Unfortunatelynooneboughtthething.15Ithinkthatwasaboutright.16I'mextremelyproudofthemusicweproducedwewereridingawaveofhype天花乱坠的宣传wecould17liveupto.Ourrecordcompanyquietly18usandasquicklyasithadstartedmytimeinabandwasover.We19peacefullyonthedayitwasreleased.Weevenhada'lastsupper'tomarkourdemise停业.Thebandhad20everything.MyoldschoolwelcomedmebackandIworkedharderandwasfinallyadmittedtoOxfordUniversityatthegrandoldageof21.1A.troublesome B.thrilled C.hopeful D.terrible2A.hesitate B.succeed C.dream D.qualify3A.imitation B.favour C.charge D.celebration4A.droppedout B.turnedup C.divedin D.passedby5A.catchon B.takeoff C.pickup D.getround6A.declined B.lost C.expected D.signed7A.practiced B.studied C.toured D.waited8A.separated B.devoted C.concerned D.relieved9A.persuaded B.required C.reminded D.invited10A.approve B.tire C.hear D.think11A.gaveup B.endedup C.putoff D.insistedon12A.risk B.pain C.loss D.rush13A.erupt B.gather C.squeeze D.withdraw14A.preserved B.released C.displayed D.evaluated15A.Lookingforward B.Lookingdown C.Lookingback D.Lookingup16A.Though B.Since C.Unless D.Before17A.actually B.somehow C.always D.never18A.betrayed B.dropped C.impressed D.sponsored19A.splitup B.hungaround C.movedaway D.brokedown20A.experienced B.disturbed C.changed D.replaced
某数学兴趣小组要测量实验大楼部分楼体的高度如图①所示CD部分在起点A处测得大楼部分楼体CD的顶端C点的仰角为45°底端D点的仰角为30°在同一剖面沿水平地面向前走20米到达B处测得顶端C的仰角为63.4°如图②所示求大楼部分楼体CD的高度约为多少米精确到1米参考数据sin63.4°≈0.89cos63.4°≈0.45tan63.4°≈2.00≈1.41≈1.73
如图是一个圆锥的主视图根据图中标出的数据单位cm计算这个圆锥侧面展开图圆心角的度数为．
Someofthegreatestmomentsinhumanhistorywerefueledbyemotionalintelligence.WhenMartinLutherKingJr.presentedhisdreamhechoselanguagethatwouldstirtheheartsofhisaudience.Deliveringthiselectrifying震撼性的messagerequiredemotionalintelligence﹣theabilitytorecognizeunderstandandmanageemotions.Emotionalintelligencehasbeenhighlyrecommendedbyleaderspolicymakersandeducatorsasthesolutiontoawiderangeofsocialproblems.Ifwecanteachourchildrentomanageemotionstheargumentgoeswe'llhavelessbullyingandmorecooperation.Ifwecancultivateemotionalintelligenceamongleadersanddoctorswe'llhavemorecaringworkplacesandmorecompassionatehealthcare.Emotionalintelligenceisimportantbuttheuncontrolledenthusiasmhasobscured掩盖adarkside.Newevidenceshowsthatwhenpeoplesharpentheiremotionalskillstheybecomebetteratmanipulating把持others.Whenyou'regoodatcontrollingyourownemotionsyoucanhideyourtruefeelings.Whenyouknowwhatothersarefeelingyoucanmotivatethemtoactagainsttheirownbestinterests.Socialscientistshavebeguntodocumentthisdarksideofemotionalintelligence.InaresearchledbyUniversityofCambridgeprofessorJochenMengeswhenaleadergaveaninspiringspeechfilledwithemotiontheaudiencewaslesslikelytoscrutinize细察themessageandrememberedlessofthecontent.Ironically讽刺的是audiencemembersweresomovedbythespeechthattheyclaimedtorecallmoreofit.Theauthorscallthistheawestruckeffectbutitmightjustaseasilybedescribedasthedumbstruckeffect.OneobserverreflectedthatHitler'spersuasiveimpactcamefromhisabilitytostrategicallyexpressemotions﹣hewould'tearopenhisheart'﹣andtheseemotionsaffectedhisfollowerstothepointthattheywould'stopthinkingcriticallyandjustemote.'Leaderswhomasteremotionscanrobusofourcapacitiestoreason.Iftheirvaluesareoutofstepwithourowntheresultscanbedestructive.Newevidencesuggeststhatwhenpeoplehaveself﹣servingmotives动机emotionalintelligencebecomesaweaponformanipulatingothers.InastudyledbytheUniversityofTorontopsychologistStéphaneCoteuniversityemployeesfilledoutasurveyabouttheirMachiavellian不择手段的tendenciesandtookatestmeasuringtheirknowledgeabouteffectivestrategiesformanagingemotions.ThenCote'steamassessedhowoftentheemployeesdeliberatelyundermined逐渐削弱theircolleagues.TheemployeesinvolvedinthemostharmfulbehaviorswereMachiavellianswithhighemotionalintelligence.Theyusedtheiremotionalskillstolowerthedignityoftheirpeersforpersonalgain.ShiningalightonthisdarksideofemotionalintelligenceisonemissionofaresearchteamledbyUniversityCollegeLondonprofessorMartinKilduff.Accordingtotheseexpertsemotionalintelligencehelpspeopledisguise伪装onesetofemotionswhileexpressinganotherforpersonalgain.ProfessorKilduff'steamwrites.'Thestrategicdisguiseofone'sownemotionsandthemanipulationofothers'emotionsforstrategicendsarebehaviorsevidentnotonlyonShakespeare'sstagebutalsointheofficesandcorridorswherepowerandinfluencearetraded.'Ofcoursepeoplearen'talwaysusingemotionalintelligencefornefariousends.Moreoftenthannotemotionalskillsaresimplyinstrumentaltoolsforgoalaccomplishment.AresearchteamdiscoveredthatfounderAnitaRoddickusedemotionalintelligencetoinspireheremployeestofundraiseforcharity.AsRoddickexplained'Wheneverwewantedtopersuadeourstafftosupportaparticularprojectwealwaystriedtobreaktheirhearts.'Thereisgrowingrecognitionthatemotionalintelligence﹣likeanyskill﹣canbeusedforgoodorevil.Soifwe'regoingtoteachemotionalintelligenceinschoolsanddevelopitatworkweneedtoconsiderthevaluesthatgoalongwithitandwhereit'sactuallyuseful.1WhydoestheauthormentionMartinLutherKingJr.?A.Tohonorthegreatleaderforhiscourage.B.Torecommendhisspeechtootherleaders.C.Toimpressthereaderswithamajortopic.D.Toadvocateasocietywithfewerproblems.2Whichofthefollowingbelongstoadarksideofemotionalintelligence?A.Developingthecapabilitytocontrolone'sownemotion.B.Inducingpeopletodowhatbringsdisadvantagestothem.C.Appealingtotheaudiencetoconcentrateandremembermore.D.Encouragingthemovedaudiencetorecallmoreofthespeech.3WhatisthedumbstruckeffectofHitler'semotionalintelligence?A.Hisfollowerswouldtearopentheirheartstohim.B.Hisfollowerswouldexpressemotionsstrategically.C.Hisfollowerswouldlosetheabilitytoreasonproperly.D.Hisfollowerswoulddeveloptheself﹣servingmotives.4Howdopeopleusetheiremotionalintelligenceforpersonalgain?A.Theydisguisetheiremotionstoearnothers'trust.B.Theyhelptheircolleaguestobuildupconfidence.C.Theypresenttheirstrategicbehaviorsonthestage.D.Theylowertheirowndignitytogainpopularity.5WhichmaymeanthesameastheunderlinedwordinParagraph8?A.Immoral.B.Unimportant.C.Illegal.D.Uncontrollable.6Whatwouldbethebesttitleforthepassage?A.ThebenefitsofemotionalintelligenceB.Thewaysofdisguisingone'semotionsC.ThereasonsforusingemotionalskillsD.Thedarksideofemotionalintelligence
请根据你对以下两幅图的理解以ManyHandsMakeLightWork.为题用英语写一篇作文. 参考词汇: wind﹣blowntrees被风刮倒的树liftup扶起来 你的作文应包括以下内容: 1.简要描述两幅图的内容; 2.概述你对两幅图中不同做法的理解; 3.举例说明两幅图对你的启示.注意: 1.短文应该包括以上所提供的主要信息可适当发挥; 2.词数:150左右; 3.作文中不得提及有关考生个人身份的任何信息如校名人名等. ManyHandsMakeLightWork
WantawonderfultravelinLondon?Don'tmissthefollowing!CartoonMuseumThishighlyentertainingLondontouristattractioncoversthehistoryanddevelopmentofBritishcartoonsfromthe18thcenturytothepresentday.Youcanfindadetailedcollectionofalltypesofcartoonsinthismuseumincludingcaricatures讽刺漫画andrareexamplesofcartoonart;it'sanidealplacetoentertainkidsofallagesaswellasaseriouscollectionforanimationenthusiasts.Thereareoverninehundredpiecesonexhibitandthemuseumregularlyholdseventswherebothchildrenandadultscanparticipate.BookingfortheseeventsisrecommendedduetothepopularityyearroundofthisLondonMuseum.Telephone:02075808155ChislehurstCavesChislehurstinLondonishometochalkcavesthatwereminedbyhandforover8000years.AtourofthesecavesisanexcitingwaytoseehowBritishpeoplehaveimpactedontheirenvironmentoverthousandsofyears.Telephone:02084673264TheOldOperatingTheatreMuseumTheOldOperatingTheatreMuseumisoneLondonmuseumofferingafascinatinginsightintothemedicalprofessionofthepast.This300﹣yearoldherbgarret阁楼isBritain'sonlysurvivingoperatingtheatrewithawoodenoperatingtableandanobservationstandfromwhichvisitorscanwitnesssurgeryperformed.Telephone:02071882679CurzonMayfairCinanaMuseumRecentlyvotedoneofLondon'sbestcinemasbyTimeOutreaderstheCurzonMayfaircinemaiseverythingyouwouldexpectfromthisparticularpartoftown:luxurious奢华的andtasteful.Showingmostlyart﹣houseandindependentfilms.theCurzonMayfairisuniqueintheworldofLondoncinemaforitsroleinscreeningthesefilmsforindustryandpress.Telephones033332101041WhatcanwelearnfromtheCartoonMuseum?A.Itisdesignedonlyforkids.B.ItistheoldestcartoonmuseuminBritain.C.Visitorscantakepartintheactivitiesheldinit.D.Onemustbookthemuseuminadvancetovisitit.2Whichwillyoucallupifyou'dliketoknowsurgeryofthepast?A.02075808155・B.02071882679.C.03333210104.D.02084673264.3Whichofthefollowingmayattractanaturelover?A.ChislehurstCaves.B.CartoonMuseum.C.CurzonMayfairCinemaMuseum.D.TheOldOperatingTheatreMuseum.
Istillkeepthephototakenbymymomandtreasureitasmylife.ThatwasmanyyearsagowhenIwastakingsummer1incollegeandwasmovingintoanapartment.Iwascarryingtwo2witheverythingthatIwasgoingtoneedto3the6weeksofclasses.ItisthelasttimeIcanrememberevertravelingthat4.Sincethenmypossessionshave5.Thoughmostofthemlikemyfurnitureare6thereareoccasionswhenIfeel7downbyallofthem.IamsurethatIwillneedtwotrucksratherthantwosuitcasesifIever8again.Onethoughthoweverbringsme9.ItistheknowledgethatwhenImakemy10journeyfromthisworld﹣IamdeadIwon't11anyofthosethingswithme.TheonlythingsIwilltakewithmewillbewhatIhavepackedinthesuitcaseofmy12.Iwillbecarryingwithmeevery13thingIeverdideverylovingthoughtIeversharedandeverybitof14Ieverbroughtintothisworldtomakeotherslaugh.IwillbecarryingallthegoodnessIgavetoothersallthe15IwasabletoshareandallthejoyIcreated.Thesethingswontbeweighingmedown.InsteadIwillbesurely16.Asyouare17foryourownfinaltrip﹣completelypreparedmakesurethatyoushouldnotmakeyour18heavy.Makesurethatthebelongingsinyourhome19takesecondplacetotheloveinyourheart.Whenyou20itinHeavenGodandallHisangelswillsmile.1A.journeys B.holidays C.lectures D.classes2A.trucks B.suitcases C.books D.computers3A.bringout B.takeaway C.getthrough D.payfor4A.hard B.light C.unforgettably D.happily5A.gone B.appeared C.lessened D.grown6A.expensive B.useful C.beautiful D.enjoyable7A.weighed B.put C.turned D.calmed8A.treasure B.possess C.move D.demand9A.confusion B.matter C.hate D.comfort10A.final B.pleasant C.tiring D.latest11A.compare B.take C.fill D.stand12A.soul B.body C.home D.college13A.strange B.little C.kind D.smart14A.knowledge B.hope C.thought D.laughter15A.love B.information C.time D.money16A.burstout B.wornout C.givenup D.liftedup17A.ready B.eager C.fit D.responsible18A.world B.weight C.travel D.heart19A.hardly B.always C.rather D.never20A.cover B.wrap C.unpack D.untie
计算1﹣+÷．
假定你是李华你校学生会创办的你最喜爱的英语月报EnglishMonthly向读者征集意见.请你给主编写封邮件内容包括: 1.自我介绍; 2.说明该报优点:内容丰富;指导英语学习; 3.提出建议:多介绍中国传统文化及励志故事. 注意: 1.词数100左右; 2.可以适当增加细节以使行文连贯.
Somebusinessownersarekeenonpublicwelfare.Thisislocalserviceshavebeenfunded. A.whether B.what C.where D.how
﹣HowaboutgoingsightseeingthisSaturdayafternoon? ﹣SorryImyresearchreportthewholeweekend. A.willhavewritten B.willbewriting C.havewritten D.havebeenwriting
SignsofEatingDisorderAbout30millionAmericanslivewithaneatingdisorder.1YetmanyothersareoftenhiddeninplainsightIt'simportanttoknowthesymptomsinthosewhomightbeatriskforaneatingdisorder.They'reconstantlytalkingaboutdieting.Thediscussionaroundchangingeatinghabitsisincrediblycommon.Lookatanylifestylemagazineorwebsiteandyou'lllikelyfinddietingtipsandadvice.2Ifsomeoneyouloveisconstantlytalkingaboutfoodortheirdietinghabits*itmightbeasignofconcern.3ChangesinmoodorbehaviorssurroundingfoodorexercisecanbesignsofconceraThiscouldmeanaswitchinactivitylevellikeoverexercisingtoooftencountingcaloriesfrequentlyvisitingthebathroomaftereatingfastingoreatingtoomuch.4They'reconstantlyturningdownfood﹣centiicsocialgatherings.AvoidingsocialinteractionssuchasbirthdaypartiesorgoingouttodinnerwithfriendsisasignificantdangersignalPeoplelivingwiththeconditionhaveanintensefocusonfoodorbodyimage.Theywillkeepawayfromsituations﹣likelyonesthatoncebroughtthemjoy﹣wherethatdeterminationmightbetested.Thebestwaytosupportsomeonewhomaybeexperiencinganeatingdisorderisbytalkingwiththem*butwhenandhowyoudoitmatters.5Approachthemwithloveandcompassion*letthemknowthatyoucareaboutthemandthatyounoticethatthereissomethingtheymaybestrugglingwith.A.Thisalsomightcomewithanoticeableweightlossorgain.B.Howeverbeingtrappedinthatdiscussionisadifferentstory.C.Theirfitnessoreatinghabitsareconstantlyoutoftheordinary.D.Moodchangesassociatedwitheatingmayalsobeadangersignal.E.Itshouldbeawayfromthenormalroutineandoutsideofamealtime.F.Somesymptomsofaneatingdisordermaybemorevisibletotheeyes.G.Eatzingdisordersareagroupofconditionsmarkedbyanunhealthyrelationshipwithfood.
如图在Rt△ABC中∠ACB＝90°∠B＝60°DE为△ABC的中位线延长BC至F使CF＝BC连接FE并延长交AB于点M．若BC＝a则△FMB的周长为．
manyChineseholidaysaredirectedtowardsservicesrememberingancestorstheChingMingFestivalisbeyonddoubtthelargest. A.Unless B.Since C.Once D.While
如图所示的几何体的左视图是
Wordcamethat30firefightersgavetheirlivestoourcountrynationalpropertysecurity. A.inexchangefor B.inresponseto C.intermsof D.incontrastwith
某商场的运动服装专柜对AB两种品牌的运动服分两次采购试销后效益可观计划继续采购进行销售．已知这两种服装过去两次的进货情况如下表 1问AB两种品牌运动服的进货单价各是多少元 2由于B品牌运动服的销量明显好于A品牌商家决定采购B品牌的件数比A品牌件数的倍多5件在采购总价不超过21300元的情况下最多能购进多少件B品牌运动服
某快递公司每天上午900﹣1000为集中揽件和派件时段甲仓库用来揽收快件乙仓库用来派发快件该时段内甲乙两仓库的快件数量y件与时间x分之间的函数图象如图所示那么当两仓库快递件数相同时此刻的时间为
如图BC是半圆O的直径DE是上两点连接BDCE并延长交于点A连接ODOE．如果∠A＝70°那么∠DOE的度数为
如图在Rt△ABO中∠OBA＝90°A44点C在边AB上且＝点D为OB的中点点P为边OA上的动点当点P在OA上移动时使四边形PDBC周长最小的点P的坐标为
Mendon'tgothroughpregnancyorchildbirth.Theirhormone荷尔蒙levelsdon'tnosedive.Whatexactlyhavetheygottobedepressedabout?QuitealotaccordingtoresearchfromSwedenshowingthatoverthepast10yearsasignificantnumberofmenhavestruggledwiththetransition过渡tofatherhood.Thislatestresearchtriestoquantifyjusthowmanymengetpostnatal产后depression.Previousstudieshavefoundbetween4%and10%ofmenwhileinthissmallishsampleof447Swedishfatherswhovolunteeredandmaythereforenotrepresentyouraveragedadasurprising28%ofmenhadsymptomsthatscoredabovemildlevelsofdepression.Overall4%hadmoderatedepression.Fewerthanoneinfivefatherswhoweredepressedsoughthelpeventhoughathirdofthosehadthoughtaboutharmingthemselves.WhilewomenintheUKareoftenaskedaseriesofquestionsthatscreenforpostnataldepressionwhichaffectsupto13%ofwomenthementalhealthoffathersisrarelyassessed.TheleadauthoroftheSwedishpaperElisaPsounifromthedepartmentofpsychologyatLundUniversitysaystheEdinburghPostnatalDepressionScaleEPDSusedforbothwomenandmenisnotsoaccurateinpickingupdepressioninfathers.Herresearchshowedhigherlevelsofdepressionindadsbecauseitaddedinascoremorereflectiveof'male'symptomsofdepressionsuchasagitationangerirritability易怒workinglongerhoursanddrinkingtoomuch.Depressioninfathersmayberisingnotjustbecauseresearchersarelookingforitbutbecausemorenewdadsarestruggling.Psounibelievesfathersincreasinglyfacethesamedilemmasthatmothersdo﹣includingtryingtocombineparenthoodwithworking.Fatherswhogotdepressedoftenhadexternalpressuressuchasjobissuesandiftheirpartnerwasdepressedtheirownriskofdepressiondoubled.Lackofsleephavingtwinsandconflictintherelationshipcanallcontribute.Adepresseddadwillplayandsmilelesswithhischild.Childrenaredeeplyaffectedbypaternalpostnataldepressionwithstudiesshowingpoorermeasuresofwellbeingandmorebehaviouralproblemsattheageofseven.Fatherswhosensetheymaybestrugglingandpartnersrelativesorfriendswhonoticeanincreaseinirritabilityandanxietyinamaninthefirstyearofparenthoodpaternaldepressionismoredispersedthroughoutthefirst12monthsshouldconsiderthepossibilityofpaternalpostnataldepression.Cognitivebehaviouraltherapy认知行为疗法canhelpascanantidepressants.IfthedepressionisnotrecognisedsaysPsouni'oneofmostterriblethingsisthatyoucatchupwithyourselfayearlaterandrealiseyouhavebeenreallydownandstruggling﹣andthefirstyearofyourchild'slifehasgone.'1WhatisrevealedaboutmenaccordingtoaSwedenresearch?A.Theyexperienceasharpdeclineinhormone.B.Manyofthemsufferfrompostnataldepression.C.Theyseldomgothroughpregnancyorchildbirth.D.Manyofthemqualifyforthetransitiontofatherhood.2WhatdothestatisticsinParagraph2indicate?A.TheresearchersshouldinvitemoreSwedishfathers.B.OverhalfofSwedishfatherstendtoharmthemselves.C.Thementalhealthoffathersdeservesmoreattention.D.PostnataldepressionaffectsBritishwomenmoreeasily.3WhydidPsouni'sresearchshowhigherlevelsofdepressionindads?A.Researchersuseanewmeasureformalesymptomofdepression.B.ResearchersadoptEPDStoaccuratelypickupdepressionindads.C.Fathershavetroubleincopingwithinternalandexternalpressures.D.Fathersareoftenfacedwiththedoubledriskofpartnerdepression.4Whatmayhappentoafatherwithpaternaldepression?A.Hemaydevelopterriblebehavioralhabits.B.Hemayavoidbeingrecognizedwithdepression.C.Hemaydeclinecognitivebehavioraltherapy.D.Hemaymissthechanceofgivingproperchildcare.
Arecentstudyfoundthatpeoplewholiveincolderclimatesconsume1muchalcoholthanpeoplewholiveinwarmweather.'Alcoholissomethingthateveryonethoughtharmfulfor2decadebutnoonehasscientificallydemonstratedit'aprofessorwroteinapressrelease.WhydopeopleinRussiadrinksomuch?Everybody3assumethat'sbecausetheweatheriscold.Butwecouldn'tfindasinglepaper4linkclimatetoalcoholintake.Sincealcoholcouldincreasewarmbloodflowintheskinlastmonththeresearchersinastudy5suggestthatpeopleshouldreachforbooze豪饮whenit'scoldoutside.Theresearcherscombedthroughdatatocompareclimatefactorsandalcoholconsumptionpercapita每人的.6studyalsofoundthatastemperaturesandsunlighthoursdecreasealcoholconsumptiongoesup.Shorterhoursofsunlightandcoolertemperaturesalsorelate7higherratesofdepression8islinkedtoanincreaseindrinking.Theprofessorhopesthisdatawillhelpinfluencehealthpoliciesonalcoholabuse.'Knowingthatcolderplaceshavemoredrink﹣relatedproblemscouldbe9helptotheeffortsintheseareas10determinebetterpolicies'hesaid.
下列各式不成立的是
Theinfrastructureprojecthasconsumedsomuchmoneythatwecan'tfindanyfinancialsupportandhaveto. A.pullout B.pullthrough C.catchup D.catchon
热门题库
更多
教案备课库
教案备课库
教案备课库
教案备课库
教案备课库
教案备课库
教案备课库
教案备课库
教案备课库
教案备课库
高一下学期数学
教案备课库
高一上学期数学
高一上学期化学
教案备课库
教案备课库
湘公网安备 43130202000226号