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某生物兴趣小组的同学利用本校连续四年来全体学生的体检结果对全体学生进行红绿色盲发病情况的调查，结果汇总如下表，请根据表中数据分析回答： （1）第1组同学分析上表数据，可反映出红绿色盲遗传具有 ...
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高三下学期生物《》真题及答案
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某生物兴趣小组的同学利用本校连续四年来全体学生的体检结果对全体学生进行红绿色盲发病情况的调查结果汇总
某兴趣小组的同学对该市四所高中一年级的全体学生进行色盲发病率调查结果汇总如下表表中数据可反映出色盲遗
隔代遗传
男性患者多于女性患者
交叉遗传
女性患者的儿子是患者
某生物兴趣小组的同学利用本校连续4年来全体学生的体检结果对全体学生进行红绿色盲发病率调查结果汇总如下
某生物兴趣小组的同学利用本校连续四年来全体学生的体检结果对全体学生进行红绿色盲发病情况的调查结果汇总
学校社会工作者组织高年级同学利用课余时问与低年级同学交流学习心得从学校社会工作的主要内容来看这属于
全体学生成长关怀
全体学生生活辅导
特殊群体学生服务
全体学生学业辅导
全体学生职业辅导
某生物兴趣小组的同学利用本校连续四年来全体学生的体检结果对全体学生进行红绿色盲发病情况的调查结果汇总
某校的一个生物兴趣小组在研究性学习活动中开展了色盲普查活动他们先从学校的1800名学生中随机抽取了1
10%
20%
80%
90%
某校为开展每天一小时阳光体育活动准备组建篮球排球足球乒乓球四个兴趣小组并规定每名学生至少参加1个小组
某生物兴趣小组的同学利用本校连续四年来全体学生的体检结果对全体学生进行红绿色盲发病情况的调查结果汇总
某生物兴趣小组的同学利用本校连续4年来全体学生的体检结果对全体学生进行红绿色盲发病率调查结果汇总如下
8分下面是某生物兴趣小组的同学做的两例关于人类遗传病的调查分析1该小组同学利用本校连续4年来全校32
四年级的全体学生参加广播操比赛排成4路纵队入场队伍长230米每队前后两人相距2米四年级共有多少名学生
464
468
482
456
某生物兴趣小组的同学利用本校连续4年来全体学生的体检结果对全体学生进行红绿色盲发病率调查结果汇总如下
某校的一个生物兴趣小组在研究性学习活动中开展了色盲普查活动他们先从全校的1800名学生中随机抽取了1
7.5％
10％
15％
1％
某校的一个生物兴趣小组在研究性学习活动中开展了色盲普查活动他们先以全校的1800名学生男女生各一半作
7.5%
10%
15%
1%
某老师为了贯彻素质教育的观念在班级中组织了绘画兴趣小组规定每个同学都必须参加这位老师的做法
正确，体现了面向全体学生的理念
错误，忽视了学生的个体差异
错误，忽视了培养学生的创新精神和实践能力
正确，体现了促进学生全面发展
某生物兴趣小组的同学利用本校连续4年来全体学生的体检结果对全体学生进行红绿色盲发病率调查结果汇总如下
某兴趣小组的同学对该市四所高中一年级的全体学生进行色盲发病率调查结果汇总如下表表中数据可反映出色盲遗
隔代遗传
男性患者多于女性患者
交叉遗传
女性患者的儿子是患者
某生物兴趣小组的同学利用本校连续四年来全体学生的体检结果对全体学生进行红绿色盲发病情况的调查结果汇总
课外活动组织形式不包括下面的哪一项
全体学生参加的课外活动
少数学生参加的课外生物兴趣小组活动
个人独立进行的课外活动
教师作为主体地位的课外活动
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利尿酸是奥运会禁止使用的兴奋剂之一其结构简式如图．下列有关利尿酸的说法中正确的是
下列说法正确的是
Theuniversitystartedsomenewlanguageprogramstothecountry'sSilkRoadEconomicBelt. A.applyto B.caterfor C.appealto D.huntfor
下列实验装置图正确的是
ThewholeteamCristianoRonaldoandheseldomletsthemdown. A.waiton B.focuson C.counton D.callon
美食是人们造访上海的乐趣之一.visit.
阅读下面短文掌握其大意从每题所给的ABCD四个选项中选出最佳选项并在答题卡上将该项涂黑. MyyoungerbrotherwouldbeleavingforcollegeandIwasleavingforanewjobinEurope.Weonlyhadafewpreciousmonthsleftasafamilylivingunderthesame41.Everythingwouldchangeinthe42. Afamilyofmagpies喜鹊43inourmapletree.Thisfamilyseemedtobeextraordinarilylively.Oneearlymorningthenoisewasso44thatmydadwentouttoseewhatthebirdsweredoing.Hefoundayoungmagpie45aroundtheyardflapping拍打hislittlewingsandyelling. DadlookedupinthetreetofindMommyandDaddyMagpiesittingonabranchandglaring46athim.Hehadtodosomethingforthepoorlittlething.Dadcalledthezoofor47.Theytoldhimnotto48itandassuredhimthebabywouldlearntoflyonitsown.Dadnolonger49themagpiearoundtheyard.Hedidhoweverwatchhim50fromthelivingroomwindowjusttomakesureacatdidn'tturnhiminto51. ThenextdayIgota52atmysummerjob.Itwasfrommyfather.Henevercalledme53.HeaskedmeifIsawMoreybeforeIlefthome﹣henamedthebirdMorey. DrivinghomefromworkI54itwasn'tonlyaboutthemagpiebutalsoabouthisownlittlefledglings幼鸟whowere55thenest.Itwasaboutmybrotherandme.DadfeltashelplessastheMommyandDaddybirdwatchinginthetree.Hecouldn'tmakeusflynorcouldhe56catsonceweleftthenest. Igothomeandfoundhimlookingoutofthekitchenwindowwith57inhiseyes.I58himbysayingMoreymighthavelearnttoflywithverygoodparentsraisinghim. SoonitwastheendofAugust.Bagswere59anditwastimeformybrotherandmetoleavethenest.IntheendDadhadnothingtoworryabout.He60hislittlefledglingswell.Andweflew… 41.A.house B.roof C.family D.room 42.A.fall B.spring C.winter D.summer 43.A.cutdown B.tookdown C.settleddown D.broughtdown 44.A.exciting B.low C.frightening D.loud 45.A.flying B.wandering C.running D.jumping 46.A.helplessly B.carefully C.hopefully D.suddenly 47.A.advice B.permission C.leave D.conclusion 48.A.hunt B.touch C.ignore D.chase 49.A.helped B.assisted C.followed D.collected 50.A.coldly B.cautiously C.purposely D.gladly 51.A.taste B.nest C.meat D.lunch 52.A.call B.message C.news D.notice 53.A.athome B.atschool C.atwork D.atnoon 54.A.summarized B.wondered C.realized D.questioned 55.A.building B.leaving C.directing D.quitting 56.A.driveaway B.fightagainst C.arguewith D.associatewith 57.A.light B.doubts C.pain D.tears 58.A.greeted B.comforted C.persuaded D.hugged 59.A.locked B.strengthened C.loaded D.packed 60.A.brought B.loved C.raised D.accompanied
申请材料需要精心准备这样你心仪的学校才会对你的能力有全面准确的了解.inorderthat.
肼N2H4又称联氨是一种可燃性的液体可用作火箭燃料． 已知N2g+2O2g＝2NO2g△H＝+67.7kJ/mol 2N2H4g+2NO2g＝3N2g+4H2Og△H＝﹣1135.7kJ/mol 下列说法正确的是
OneoftheexecutivesgatheredattheAspenInstituteforaday﹣longleadershipworkshopusingtheworksofShakespearewasdiscussingtheroleofBrutusinthedeathofJuliusCaesar.Brutuswasnotanhonorablemanhesaid.Hewasatraitor叛徒.Andhemurderedsomeoneincoldblood.TheagreementwasthatBrutushadactedwithcrueltywhenotheroptionswereavailabletohim.Hemadeabaddecisiontheysaid﹣atleastasitwaspresentedbyShakespeare﹣totaketheleadinmurderingJuliusCaesar.AndthoughoneoftheexecutivesacknowledgedthatBrutushadthegoodoftherepublicinmindCaesarwasneverthelesshissuperior.Youhavetoendeavortheexecutivessaidourpolicyistoobeythechainofcommand. DuringthelastfewyearsbusinessexecutivesandbookwriterslookingforanewwaytoadvisecorporateAmericahavebeenexploitingShakespeare'swisdomforprofitableends.NonemoresothanhusbandandwifeteamKennethandCarolAdelmanwell﹣knownadviserstotheWhiteHousewhostartedupatrainingcompanycalledMoversandShakespeares.TheyareamateurShakespearescholarsandShakespeareloversandtheyhavecombinedtheirpassionandtheirhighlevelcontactsintoamanagementtrainingbusiness.Theyconductbetween30and40workshopsannuallyfocusingonhalfadozendifferentplaysmostlyforcorporationsbutalsoforgovernmentagencies. Theworkshopsalltakethesameformfocusingonasingleplayasakindofcasestudyandusingindividualscenesasspecificlessons.InJuliusCaesarslyprovocation狡诈的挑唆ofBrutustotakeuparmsagainstthewhatwasabasisforadiscussionofmethodsofteambuildingandgrassrootsorganism. AlthoughneitheroftheAdelmansisacademicallytrainedinliteraturetheprogrammescontainplentyofShakespearetraditionandbackground.TheirworkshoponHenryVforexampleincludesahelpfulexplanationofHenry'swinningstrategyattheBattleofAgincourt.Buttheydocometothetextwithafewbiases偏向theirreadingofHenryVminimizeshismisuseofpower.Insteadtheyemphasizethestoryoftheyouthwhoseizesopportunityandbecomesamasterfulleader.AndattheworkshoponCaesarMr.AdelmanshadlittlegoodtosayaboutBrutussayingthenoblestRomanofthemallcouldn'tmakehismindupaboutthings. ManyoftheparticipantspointedtoveryspecificelementsintheplaythattheyfeltrelatedCaesar'spridewhichledtohismurderandBrutus'smistakesinleadingtheafterthemurdertheysaidraisevitalquestionsforanyoneservingasabusinesswhenandhowdoyouresisttheboss? 73.Accordingtoparagraph1whatdidalltheexecutivesthinkofBrutus?. A.Cruel. B.Superior. C.Honourable. D.Rude 74.AccordingtothepassagetheAdelmanssetupMoversandShakespearesto. A.helpexecutivestounderstandShakespeare'splaysbetter B.giveadviceonleadershipbyanalyzingShakespeare'splays C.providecasestudiesofShakespeare'splaysinliteratureworkshops D.guidegovernmentagenciestofollowthecharactersinShakespeare'splays. 75.WhydotheAdelmansconductaworkshoponHenryV? A.Tohighlighttheimportanceofcatchingopportunities. B.Toencouragemasterfulleaderstoplanstrategiestowin. C.Toillustratetheharmofprejudicesinmanagement. D.Towarnexecutivesagainstpowermisuse. 76.Itcanbeinferredfromthepassagethat. A.theAdelmans'programmeprovesbiasedastherolesofcharactersaremaximized. B.executivesfeelboredwithtoomanyspecificelementsofShakespeare'splays. C.theAdelmanswillmakemoreprofitsiftheyareprofessionalscholars. D.Shakespearehasplayedanimportantroleinthemanagementfield. 77.Thebesttitleforthepassageis. A.Shakespeare'splaysExecutivesreconsidercorporateculture B.Shakespeare'splaysAnessentialkeytobusinesssuccess C.Shakespeare'splaysalessonforbusinessmotivation D.Shakespeare'splaysDramatictrainingbringsdramaticresults.
Giftfromastranger Mylocalsupermarketisalwaysbusy.ThefirstparkingspaceIfoundwasconvenientbutI'dnoticedawomaninabluecarcirclingforawhile.25IwasinagoodmoodIletherhaveit.OntheedgeofthecarparkIbackedintothenextavailablespot﹣itwasatightfit. PrettysoonI'dmademywaythroughthesupermarketandwasbackinthefreshair.FeelinggoodI26emptymypursechangeintothehandsofahomelessmanandhelpedastrugglingwomanreversepark. JustasIapproachedmycar1sawthewomanI'dlethavemycarspaceearlier.Shewasgivingme27oddlook﹣halfpuzzledhalfintent热切的.Ismiledandwishedherapleasantday.AsIsqueezedbackintomycarIspottedthesamelady28lookinatme.Helloshesaidhesitantly.This29soundcrazybutIwasonmywaytodropsomeofmymother'sthingsoffatthecharitybins.Youarejustsomuch30her.YouhelpedthosepeopleInoticedandyouseemedsohappy.Shelookedatmemeaningfullyandpassedaboxinthroughthewindow.Ithinkshewouldlikeyoutohaveit.31shockItookitfromherautomatically.Shesmiledandwalkedaway. AfterapauseIopenedthebox.Insidewasabeautifulgoldnecklacewithalargegreypearl.Itwas32nicegiftI'deverreceivedanditwasfromacompletestranger.Thenecklacewasaroundmyneckawarmreminderofhumankindness. 25. 26. 27. 28. 29. 30. 31. 32.
56.AccordingtotheCodevisitorsshouldact. A.withcareandrespect B.withreliefandpleasure C.withcautionandcalmness D.withattentionandobservation 57.WhatareyouencouragedtodowhentravellinginNewZealand? A.Takeyourowncampingfacilities. B.Buryglassfarawayfromrivers. C.Followthetrackforthesakeofplants. D.Observesignstoapproachnestingbirds.
SeeacellphonecoverthatyoulikeonTaobao?Forgetaboutplacinganorderpayingthebillonlineandwaitingfordaysforittobedeliveredtoyou.Inthenearfutureyou'llbeabletogetitinminutesjustbyhittingprintonyourcomputer.Youmightfindithardtobelievethatyoucouldactuallyprintanobjectlikeyouwouldapicture.Butitisnotthathardtounderstandhowitwouldwork.Justasatraditionalprinterspraysinkontopaperlinebylinemodern3Dprintersspreadmaterialontoasurfacelayerbylayerfromthebottomtothetopgraduallybuildingupashape. Insteadofinkthematerialsthe3Dprinterusesaremainlyplasticresin树脂andcertainmetals.Thethinnereachlayeris﹣fromamillimetretolessthanthewidthofahair﹣thesmootherandfinertheobjectwillbe.Thismaysoundlikeacompletelynewtechnologybutthetruthisthat3Dprintinghasbeenaroundsincethelate1980s.Backthenitwasbarelyaffordableformostpeoplesofewknewaboutit. Lastyearthoughsawabigchangeinthe3Dprintingindustry﹣printersbecamemuchcheaper.Forexample10yearsagoadesktop3Dprintermighthavecost￡20000whilenowtheycostonlyabout￡1000accordingtotheBBC.Takenoutofthefactoryandintroducedtomorediverseandcommonuses3Dprintingcancreatejustaboutanythingyoucanthinkof﹣flutesbikinisjewelryaircraftpartsandevenhumanorgans.InfactscientistsfromCornellUniversityinNewYorkhavejustmadeanartificialearusinga3DprinteraccordingtoScienceDaily.Thefakeearlooksandactsexactlylikeanaturalone. Howeveras3Dprintingbecomesmorecommonitmaybringaboutcertainproblems﹣suchaspiracy.Onceyoucandownloadacoffeemakerorprintoutanewsetofkitchenutensils餐具onyourpersonal3Dprinterwhowillvisitaretailstoreagain?anexpertin3DprintingtoldForbesNews.Evenmorefrighteningwhatifanyoneintheworldcouldusea3Dprintertoprintoutafullyfunctioninggun? 32.Accordingtothearticleinthefuturethe3Dprintingtechnologywill. A.enablepeopletomakebetterpurchasesonline B.changethewaywemakemanyproducts C.beappliedaswidelyinourdailylifeascomputers D.shortenthetimeittakesforpeopletogetwhattheybuyonline 33.Whathappenedinthe3Dprintingindustrylastyear? A.The3Dprintingtechnologywastakenoutofthefactory. B.The3Dprintingtechnologybegantobeusedinvariousfields. C.The3Dprinterwasusedformedicaltreatmentforthefirsttime. D.The3Dprinterbecamemoreaffordableforconsumers消费者. 34.Whatisthebesttitleofthepassage? A.GreatDemandfor3DPrinters B.TechnologyintheFuture C.OnlineShoppingDisappearing D.PrintingoutEverything 35.Howisthelastparagraphdeveloped? A.Bygivingexamples. B.Bymakingcomparisons. C.Byanalyzingthecauseandeffect. D.Byusingfigures.
Papaasasonofadirt﹣poorfarmerleftschoolearlyandwenttoworkinafactoryforeducationwasfortherichthen.Sotheworldbecamehisschool.Withgreatinteresthereadeverythinghecouldlayhishandsonlistenedtothetowneldersandlearnedabouttheworldbeyondhistinyhometown.There'ssomuchtolearnhe'dsay.Thoughwe'rebornstupidonlythestupidremainthatway.Hewasdeterminedthatnoneofhischildrenwouldbedenied拒绝aneducation. ThusPapainsistedthatwelearnatleastonenewthingeachday.ThoughaschildrenwethoughtthiswascrazyitwouldneverhaveoccurredtoustodenyPapaarequest.Anddinnertimeseemedperfectforsharingwhatwehadlearned.Wewouldtalkaboutthenewsofthedaynomatterhowinsignificant微不足道的itwasnevertakenlightly.Papawouldlistencarefullyandwasreadywithsomecommentalwaystothepoint. Thencamethemoment﹣thetimetosharetheday'snewlearning. Papaattheheadofthetablewouldpushbackhischairandpouraglassofredwinereadytolisten. Felicehe'dsaytellmewhatyoulearnedtoday. IlearnedthatthepopulationofNepalis… Silence. Papawasthinkingaboutwhatwassaidasifthesalvation拯救oftheworldwoulddependuponit.ThepopulationofNepal.Hmm.Well…he'dsay.Getthemaplet'sseewhereNepalis.AndthewholefamilywentonasearchforNepal. Thissameexperiencewasrepeateduntileachfamilymemberhadaturn.Dinnerendedonlyafterwehadaclearunderstandingofatleasthalfadozensuchfacts. Aschildrenwethoughtverylittleabouttheseeducationalwonders.Ourfamilyhoweverwasgrowingtogethersharingexperiencesandparticipatinginoneanother'seducation.Andbylookingatuslisteningtousrespectingourinputaffirming肯定ourvaluegivingusasenseofdignity体面Papawasunquestionablyourmostinfluentialteacher. LaterduringmytrainingasafutureteacherIstudiedwithsomeofthemostfamouseducators.Theywereimparting传授whatPapahadknownallalong﹣thevalueofcontinuallearning.Histechniquehasservedmewellallmylife.NotasingledayhasbeenwastedthoughIcannevertellwhenknowingthepopulationofNepalmightproveuseful. 21.Whatdoweknowfromthefirstparagraph? A.Theauthor'sfatherwasborninaworker'sfamily. B.Thosebornstupidcouldnotchangetheirlife. C.Thetownelderswantedtolearnabouttheworld. D.Thepoorcouldhardlyaffordschooleducation. 22.Theunderlinedworditinthesecondparagraphrefersto A.onenewthing B.arequest C.thenews D.somecomment 23.Itcanbelearnedfromthepassagethattheauthor. A.enjoyedtalkingaboutnews B.knewverywellaboutNepal C.feltregretaboutthosewasteddays D.appreciatedhisfather'seducationaltechnique 24.Whatisthegreatestvalueofdinnertimetotheauthor? A.Continuallearning. B.Showingtalents. C.Familyget﹣together. D.WinningPapa'sapproval.
Supposeyoubecomealeaderinanorganization.It'sverylikelythatyou'llwanttohavevolunteerstohelpwiththeorganization'sactivities.Todosoitshouldhelptounderstandwhypeopleundertakevolunteerworkandwhatkeepstheirinterestinthework. Let'sbeginwiththequestionofwhypeoplevolunteer.Researchershaveidentifiedseveralfactorsthatmotivatepeopletogetinvolved.Forexamplepeoplevolunteertoexpresspersonalvaluesrelatedtounselfishnesstoexpandtheirrangeofexperiencesandtostrengthensocialrelationships.Ifvolunteerpositionsdonotmeettheseneedspeoplemaynotwishtoparticipate.Toselectvolunteersyoumayneedtounderstandthemotivationsofthepeopleyouwishtoattract. Peoplealsovolunteerbecausetheyarerequiredtodoso.Toincreaselevelsofcommunityservicesomeschoolshavelaunchedcompulsoryvolunteerprograms.Unfortunatelytheseprogramscanshiftpeople'swishofparticipationfromaninternalfactore.g.Ivolunteerbecauseit'simportanttometoanexternalfactore.g.IvolunteerbecauseI'mrequiredtodoso.Whenthathappenspeoplebecomelesslikelytovolunteerinthefuture.Peoplemustbesensitivetothispossibilitywhentheymakevolunteeractivitiesamust. Oncepeoplebegintovolunteerwhatleadsthemtoremainintheirpositionsovertime?Toanswerthisquestionresearchershaveconductedfollow﹣upstudiesinwhichtheytrackvolunteersovertime.Forinstanceonestudyfollowed238volunteersinFloridaoverayear.Oneofthemostimportantfactorsthatinfluencedtheirsatisfactionasvolunteerswastheamountofsufferingtheyexperiencedintheirvolunteerpositions.Althoughthisresultmaynotsurpriseyouitleadstoimportantpracticaladvice.Theresearchersnotethatattentionshouldbegiventotrainingmethodsthatwouldpreparevolunteersfortroublesomesituationsorprovidethemwithstrategiesforcopingwiththeproblemtheydoexperience. Anotherstudyof302volunteersathospitalsinChicagofocusedonindividualdifferencesinthedegreetowhichpeopleviewvolunteerasanimportantsocialrole.Itwasassumedthatthosepeopleforwhomtheroleofvolunteerwasmostpartoftheirpersonalidentitywouldalsobemostlikelytocontinuevolunteerwork.ParticipantsindicatedthedegreetowhichthesocialrolematteredbyrespondingtostatementssuchasVolunteeringinHospitalisanimportantpartofwhoIam.Consistentwiththeresearchers'expectationstheyfoundapositivecorrelation正相关betweenthestrengthofroleidentityandthelengthoftimepeoplecontinuedtovolunteer.TheseresultsonceagainleadtoconcreteadviceOnceanindividualbeginsvolunteeringcontinuedeffortsmightfocusondevelopingavolunteerroleidentity…ItemslikeT﹣shirtsthatallowvolunteerstoberecognizedpubliclyfortheircontributionscanhelpstrengthenroleidentity. 61.Peoplevolunteermainlyoutof. A.academicrequirements B.socialexpectations C.financialrewards D.internalneeds 62.WhatcanwelearnfromtheFloridastudy? A.Follow﹣upstudiesshouldlastforoneyear. B.Volunteersshouldgetmentallyprepared. C.Strategytrainingisamustinresearch. D.Volunteersareprovidedwithconcreteadvice. 63.Whatismostlikelytomotivatevolunteerstocontinuetheirwork? A.Individualdifferencesinroleidentity. B.PubliclyidentifiablevolunteerT﹣shirts. C.Roleidentityasavolunteer. D.Practicaladvicefromresearchers. 64.Whatisthebesttitleofthepassage? A.HowtoGetPeopletoVolunteer B.HowtoStudyVolunteerBehaviors C.HowtoKeepVolunteers'Interest D.HowtoOrganizeVolunteerActivities.
在你生命中如果有一个人你需要对他说对不起那么就去向他道歉吧.apologyIfthereissomeoneinyourlifetowhomyouneedtosaysorrygoaheadandmakean apology..
下面短文中有10处语言错误.请在有错误的地方增加删除或修改某个单词. 增加在缺调处加一个漏字符号∧并在其下面写上该加的词. 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上修改后的词. 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. I'ma17﹣year﹣oldseniorstudentfromChina.WhilesurfedtheInternetIhavefoundthatyourorganizationwillholdasummercampinSingapore.WithgreatlyinterestI'dliketoapplyforthem.I'manoutgoinggirlwholikecommunicatingwithothers.IcouldspeakEnglishwell.MywrittenEnglishisexcellenteither.Iwishtojoinintheactivities.ForonethingI'mwillingtointroduceChinatootherstudentsfromalloverworldforanotherIexpecttolearnfrommoreaboutothercountries.InadditionI'dliketomakefriend.ThechanceissopreciousasI'mreallylookingforwardtoyourapproval.
用化学用语回答下面的问题 已知由短周期元素组成的物质ABCD具有如下反应关系 1通常若A为黄绿色单质B为无色液态化合且0.1mol/L的C溶液pH＝1则D物质的结构式为C中和D中的阴离子在酸性条件下不能大量共存原因是 2若B为化合物且AC两种无色气体相遇后变为红棕色工业上制取B物质的反应为2NH3B物质溶于水后能破坏水的电离平衡原因是 3若A为单质C和D为常见的易燃气体则该反应的化学方程式是 4若A为单质B通常是无色液态化合物灼烧D产生黄色火焰则 ①若B分子含有10个电子A与B反应的离子方程式是 ②若B分子含有18个电子回答下面2个问题 A+B→C+D的化学方程式为 如下图所示的装置可组成B﹣O2燃料电池 该电池的负极反应为．
盐卤中除含有Mg2+Cl﹣外还含有少量Na+Fe2+Fe3+SO42﹣和CONH22等．从海水提取食盐和Br2后的盐卤中可以提取MgCl2MgOMgOH2等物质制备流程如图所示 1从MgCl2溶液得到MgCl2.6H2O晶体的过程中所需的基本操作顺序依次为 A．加热蒸馏B．加热浓缩C．冷却结晶D．趁热过滤E．过滤洗涤 2制取无水氯化镁必须在氯化氢存在的条件下进行原因是用适当的文字结合化学用语说明 3用NaClO除去尿素CONH22时生成物除盐外都是能参与大气循环的物质则该反应的化学方程式为加入NaClO的另一个作用是 4MgOH2是制镁盐耐火材料和阻燃剂的重要原料． 已知25℃时Ksp[MgOH2]＝5.6×10﹣12且MgOH2s═MgOs+H2Os△H＝+81.5kJ/mol． ①下列叙述正确的是 A．从盐卤或海水中获得MgOH2工业上选择NaOH作沉淀剂 B．MgOH2能作阻燃剂的原因是它分解吸热且生成MgO覆盖可燃物 C．可加热MgOH2得到MgO再电解熔融的MgO制金属镁 ②酸碱指示剂百里酚蓝变色的pH范围如下 25℃时在MgOH2的饱和溶液中滴加2滴百里酚蓝指示剂溶液的颜色为．
在一定温度下将6molCO2和8molH2充入2L恒容密闭容器中发生反应CO2g+3H2g⇌CH30Hg+H2OgAH＜O一段时间后达到平衡．反应过程中测定的数据如下表．下列说法正确的是
化学与生产生活和社会可持续发展密切相关．下列说法不正确的是
Peopleselectnewsinexpectationofareward.Thisrewardmaybeeitheroftwokinds.OneisrelatedtowhatFreudcallsthePleasurePrincipletheothertowhathecallstheRealityPrinciple.Forwantofbetternamesweshallcallthesetwoclassesimmediaterewardanddelayedreward.Ingeneralthekindofnewswhichmaybeexpectedtogiveimmediaterewardarenewsofcrimeandcorruptionaccidentsanddisasterssportssocialeventsandhumaninterest.Delayedrewardmaybeexpectedfromnewsofpublicaffairseconomicmatterssocialproblemsscienceeducationandhealth. Newsofthefirstkindpaysitsrewardsatonce.Areadercanenjoyanindirectexperiencewithoutanyofthedangersorstressesinvolved.Hecantremblewildlyatanaxe﹣murdershakehisheadsympatheticallyandsafelyatahurricaneidentifyhimselfwiththewinningteamlaughunderstandinglyatawarmlittlestoryofchildrenordogs.Newsofthesecondkindhoweverpaysitsrewardslater.Itsometimesrequiresthereadertotolerateunpleasantnessorannoyance﹣asforexamplewhenhereadsofthethreateningforeignsituationthemountingnationaldebtrisingtaxesfallingmarketscarcehousingandcancer.Ithasakindofthreatvalue.Itisreadsothatthereadermaybeinformedandprepared.Whenareaderselectsdelayedrewardnewshepullshimselfintotheworldofsurroundingrealitytowhichhecanadapthimselfonlybyhardwork.Whenheselectsnewsoftheotherkindheusuallywithdrawsfromtheworldofthreateningrealitytowardthedreamworld. Foranyindividualofcoursetheboundariesofthesetwoclassesarenotstable.Forexampleasociologistmayreadnewsofcrimeasasocialproblemratherthanforitsimmediatereward.Acoachmayreadasportsstoryforitsthreatvaluehemayhavetoplaythatteamnextweek.Apoliticianmayreadanaccountofhislatestsuccessfulpublicmeetingnotforitsdelayedrewardbutverymuchashiswifereadsanaccountofaparty.Inanygivenstoryofcorruptionordisasterathoughtfulreadermayreceivenotonlytheimmediaterewardofindirectexperiencebutalsothedelayedrewardofinformationandpreparedness.Thereforewhilethedivisionofcategoriesholdsingeneralanindividual'stendencymaytransferanystoryfromonekindofreadingtoanotherordividetheexperiencebetweenthetwokindsofreward. 71. 72. 73. 74. 75. 76. 77. 78. 79. 80.
化学与生产生活社会密切相关．下列说法中不正确的是
用石油裂解产物A可合成多种产物如F是一种称为富马酸二甲酯的杀菌剂下图用A合成一些有机产物的转化关系 1上述反应中属于加成反应的有填序号． 21H核磁共振谱图表明A分子只有两种化学环境不同的氢原子红外光谱研究表明A分子中含有两个碳碳双键请写出D的结构简式 3写出B转化为C的化学方程式． 4H物质在浓硫酸存在下可分别生成一种含六元环七元环八元环的产物写出生成六元环产物的化学方程式． 5写出与A互为同分异构体且分子中有4个碳原子共直线的有机物的结构简式． 6认真观察合成路线C→E回答下列2个问题 a．从C到E用了③⑥⑦三步反应而不是一步进行这样做的原因是 b．D被氧化成HOOC﹣CH2CHClCOOH的过程中会有中间产物生成检验该中间产物的试剂是．
Thepoliceofficersdecidedtoconductathoroughandreviewofthecase. A.comprehensive B.complicated C.conscious D.crucial
Looktomanyofhistory'sculturalsymbolsandthereyou'llfindanancestorofFrostythesnowmaninthemovieFrozen.Itappearedonsomeofthefirstpostcardsstarredinsomeoftheearliestsilentmoviesandwasthesubjectofacoupleoftheearliestphotosdatingallthewaybacktothe1800s.Idiscoveredevenmoreaboutoneofhumanity'searliestformsoflifeartduringseveralyearsofresearcharoundtheworld. ForexamplesnowmenwereaphenomenonintheMiddleAgesbuiltwithgreatskillandthought.Atatimeoflimitedmeansofexpressionsnowwaslikefreeartsuppliesdroppedfromthesky.Itwasapopularactivityforcouplestoleisurelywalkthroughtowntoviewthetemporaryworksofchillyart.Somewerecreatedbyfamousartistsincludinga19﹣year﹣oldMichelangelowhoin1494wasappointedbytherulerofFlorenceItalytobuildasnowmaninhismansion'scourtyard. TheMiracleof1511tookplaceduringsixfreezingworkscalledtheWinterofDeath.ThecityofBrusselswascoveredinsnowmen﹣animpressivescenethattoldstoriesoneverystreetcorner.Somewerepoliticalinnaturecriticizingthechurchandgovernment.Somewereareflectionofpeople'simagination.ForthepeopleofBrusselsthiswasadefiningmomentofdefiningfreedom.Atleastuntilspringarrivedbywhichtimetheyweredealingwithdamagingfloods. Ifyoufeartheheydayofthesnowmanhaspasseddon'tworryI'velearnedthatsomeexplosivesnowmanhistoryisstillbeingmadetoday.Everyyearsince1818thepeopleofZurichSwitzerlandcelebratethebeginningofspringbyblowingupasnowman.OnthethirdMondayofApriltheholidaySechselauteniskickedoffwhenacottonsnowmancalledtheBooggisstuffedwithexplosiveandparadedthroughtownbybakersandothertradesmenwhothrowbreadtothecrowds.TheparadeendswiththeBooggbeingplacedona40﹣footpileoffirewood.AfterthebellsoftheChurchofSt.Peterhaverungsixtimesrepresentingthepassingofwinterthepileislit.Whenthesnowmanexplodeswinterisconsideredofficiallyover﹣thequickeritisburntdownthelongersummerissaidtobe. 66.AccordingtothepassagewhydidsnowmenbecomeaphenomenonintheMiddleAges? . A.Peoplethoughtofsnowasholyartsupplies. B.Peoplelongedtoseemasterpiecesofsnow. C.Buildingsnowmenwasawayforpeopletoexpressthemselves. D.Buildingsnowmenhelpedpeopledeveloptheirskillandthought. 67.Theheydayofthesnowmanparagraph4meansthetimewhen. A.snowmenweremademainlybyartists B.snowmenenjoyedgreatpopularity C.snowmenwerepoliticallycriticized D.snowmencauseddamagingfloods 68.InZurichtheblowingupoftheBooggsymbolizes. A.thestartoftheparade B.thecomingofalongersummer C.thepassingofthewinter D.thesuccessoftradesmen 69.Whatcanbeconcludedaboutsnowmenfromthepassage? A.Theywereappreciatedinhistory B.Theyhavelosttheirvalue C.Theywererelatedtomovies D.Theyvaryinshapeandsize.
﹣GoandsaysorrytoyourMomDave. ﹣I'dliketobutI'mafraidshewon'tbehappywithmy. A.requests B.excuses C.apologies D.regrets
﹣Whydidn'tyouinviteJohntoyourbirthdayparty? ﹣Wellyouknowhe's. A.anearlybird B.awetblanket C.aluckydog D.atoughnut
常温下下列各组离子成分子在指定溶液中能大量共存的是
DirectionsCompletethefollowingpassagebyusingthewordsinthebox.Eachwordcanonlybeusedonce.Notethatthereisonewordmorethanyouneed. Consideringhowmuchtimepeoplespendinofficesitisimportantthatworkbewelldesigned.Well﹣designedofficespaceshelpcreateacooperation'simage.Theymotivateworkersandtheymakeanimpressiononpeoplewhovisitandmightbepotentialor41customer.Theymakebusinessesworkbetterandtheyareapartofthecorporateculturewelivein. Aswemoveawayfromanindustrial﹣basedeconomytoaknowledge﹣basedoneofficedesignershavecomeupwith42tothetraditionalworkenvironmentsofthepast.Thedesignindustryhasmovedawayfromafixedofficesetupandcreatedmoreflexiblestrategicmanagementenvironments.These43solutionsaretomeanttosupportbetterorganizationalperformances. Asemployeehierarchies等级制度haveflattenedordecreasedofficedesigners‘responsetothischangehasbeentomoveopen﹣plainareastomoredesirablelocationswithintheofficeandcreatefewerformalprivateoffices.Theneedforincreasedflexibilityhasalsobeen44bychangesinworkstationdesign.Officesandworkspacesoftenarenot45toagivenpersononapermanentbasisbecauseofchangestomethodofworkingnewdesignsallowforexpansionormovementofdesksstorageandequipmentwithintheworkstation.Anotherimportantdesigngoaliscommunicationwhichdesignershaveimprovedbyloweringthewallsthat46workstations.Designershavealsocreatedinformalgatheringplacesandupgradedemployees'47toheavilytraffickedareassuchascopyandcoffeerooms. Corporateandinstitutionalofficedesignersoftenstruggletoresolveanumberofcompetingandoften48demandsincludingbudgetarylimitsemployeehierarchiesandtechnologicalinnovationespeciallyinrelationtocomputerization.Thesedemandsmustalsobebalancedwiththeneedtocreateinteriors内饰thatinsomewayenhanceestablishorpromoteacompany‘simageandwillenableemployeesto49attheirbest.Allthese50ofofficedesignarerelated.Themostsuccessfulofficedesignsarelikeagoodmarriage﹣﹣thewell﹣designedofficeandtheemployeesthatoccupyitareseeminglymadeforeachother. 41. 42. 43. 44. 45. 46. 47. 48. 49. 50.
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