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函数f(x)=ax-1-2(a>0,a≠1)的图象恒过定点A,若点A在直线mx-ny-1=0上,其中m>0,n>0,则+的最小值为 .
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高三下学期数学《》真题及答案
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已知a>0且a≠1函数y=loga2x-3+的图象恒过定点P.若P.在幂函数fx的图象上则f8=__
函数fx=ax﹣1﹣2a>0a≠1的图象恒过定点
,若点A.在一次函数
的图象上,其中m>0,n>0,则
的最小值为( ) A.4
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函数y=ax+3﹣2a>0且a≠1的图象恒过定点A且点A在直线mx+ny+1=0上m>0n>0则的最
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无论a取何值a>0且a≠1函数y=2+ax+3的图象恒过定点________.
若a>0且a≠1则函数y=logax-1+2的图象恒过定点________.
函数a>0且a≠1的图象恒过定点.
已知命题p函数y=logaax+2aa>0且a≠1的图象必过定点-11命题q如果函数y=fx-3的图
“p∧q”为真
“p∨q”为假
p真q假
p假q真
已知命题p函数y=logaax+2aa>0且a≠1的图象必过定点-11命题q如果函数y=fx-3的图
“p且q”为真
“p或q”为假
p真q假
p假q真
已知函数y=logax+3-a>0a≠1的图象恒过定点A.若点A.也在函数fx=3x+b的图象上求b
函数y=logmx+1m>0m≠1的图象恒过定点M.若点M.在直线ax+by=1a>0b>0上则+的
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已知函数fx=logax+2-1a>0且a≠1gx=1若函数y=fx的图象恒过定点A.求点A.的坐标
已知函数y=ax+2-2a>0a≠1的图象恒过定点A.其坐标与a无关则定点A.的坐标为_______
若直线ax-by+2=0a>0b>0和函数fx=ax+1+1a>0且a≠1的图象恒过同一个定点则当+
函数y=ax-2+1a>0且a≠1图象恒过定点________.
若a>0且a≠1则函数y=logax-1+1的图象恒过定点________.
已知不论a为何值函数y=a-12x-的图象恒过定点则这个定点的坐标是.
若函数fx=ax+1+2a>0且a≠1则函数fx的图象恒过定点
函数fx=logax-1a>0a≠1的图象过定点.
函数y=ax−1+1a>0且a≠1无论a取何值函数图象恒过一个定点则定点坐标为______.
已知函数fx=ax+1﹣1a>0且a≠1的图象恒过定点P则点P的坐标为.
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O2辅助的“Al﹣CO2电池”既可有效利用CO2也可制得重要的化工原料草酸铝[Al2C2O43]工作原理如图所示.下列说法错误的是
Ibelievethatlife'stoughestlessonsarebestlearnedthroughpersonalexperience.Throughoutmychildhoodmygrandmother1mewithunconditionallovebutalwaysstressedYou'renot2thananyoneelsebutyou'rejustasgoodasanyone.Treatotherswith3andyouwouldearnrespect4. HoweverIneverreally5ituntilIwasseventeenandgotasummerjobasajanitor.AsI6floorsandtoiletsIwatchedpeoplewalkrightbymeandignoremy7.Thismademefeelangryandwonderwhytheytreatedmesopoorly. WhenI8tomygrandmothersheofferedmesomewordsof9andremindedmenevertoforgetthefeelingofbeing10andtodothebestjobbecauseitwasstillmywork11whichIshouldtakepride.Sheaddedthatitwouldmakemeabettermansomeday. Makemeabettermansomeday?Shemustbe12Ithoughttomyself.ButIneededthejobto13collegeandtherewerefewotherjobsavailable14IbitmytongueandkeptonworkingasbestasIcouldforthe15ofthesummer. Todaywhenaskedwhatjobhelpedpreparemetogainthe16ofakeyuniversityItellpeopleitwasmysummerjobcleaningrestroomsthat17measamananddowntheroadasaneducator. Asyoucansee18canonlybeunderstoodbywalkinginalotofdifferentshoes.SoIsuggeststudents19oftheircomfortzonesandgetdeeplyinvolvedindifferentworkandcommunityexperience.It'sessentialforpeopletofind20ineverypersonnomatterwhotheyareorwhattheydoforaliving. 1A.afforded B.offered C.gave D.provided 2A.better B.more C.higher D.lower 3A.care B.anger C.dignity D.age 4A.inorder B.inneed C.inadvance D.inreturn 5A.worried B.understood C.admitted D.appreciated 6A.cleaned B.repaired C.swept D.mopped 7A.glance B.presence C.instruction D.commitment 8A.attended B.suggested C.explained D.complained 9A.belief B.surprise C.comfort D.excitement 10A.horrible B.invisible C.angry D.poor 11A.in B.for C.on D.to 12A.promising B.joking C.misleading D.outstanding 13A.payfor B.gofor C.lookfor D.sendfor 14A.or B.however C.but D.so 15A.heat B.time C.rest D.hope 16A.friendship B.relationship C.leadership D.hardship 17A.served B.shaped C.viewed D.treated 18A.facts B.method C.lessons D.theories 19A.getout B.dropout C.giveout D.runout 20A.secret B.fault C.way D.value
Arecentsurveyshowsthatroughly85percentofpeoplefeelphysicalsymptomsofstress.1andtheywillhelpyoufeelmoreenergetictomorrow •Doubleyourchews Chewingisasuper-importantpartofthedigestionprocess.Chewingmakesiteasierforyourbodytobreakdownfoodandturnitintoenergy.Themostpropernumberofchewsperbiteisunclear.2.Itwillbeeasyforyourbodytobreakdownthefoodandstoreenergy. •Drinkonelesscupofcoffee Althoughcaffeineincoffeeblocksyourbrainfromreceivingadenosinewhichcausestirednessitdoesn'tstopyourbodyfromproducingit.Sooncethecaffeinedisappearsit'sthebuildupofadenosinethatcausesyoutocrashandreachformorecaffeinecreatingabadcircle.3butdrinkinglesscoffeecanhelpyoufeelmoreenergeticoverthelongterm. •Takeafewdeepbreaths Bynotbreathingdeeplyenoughyouendupsendingasignaltoyournervoussystemthatincreasesyouranxietyevenfurther.Changingyourbreathinghabitsbytakingafewlongslowbreathsthroughoutthedayreducesthestressresponsewhileenergizingyourcells.4Simplybreatheinthroughyournoseforacountofthreeandoutthroughyourmouthforacountofthree.Repeatasnecessary. •5 Takesometimetoreflectonthepositivebywritingdownthreethingsthatwentsmoothlyduringyourdayorjustitemsyoufeelgratefulfor.Thisexercisecanprepareyourmindforwhat'sgoingrightinyourlifehittingthebrakesonstressincreaseswhilehelpingtoprotectyourenergyreserves. A.Setdownwhatwentwelltoday B.Tryanexercisetoachievethis C.Reflectonyourdaysometimes D.Reducingyourrelianceonitsoundsscary E.Takealookatthesmallchangesyoucanmaketoday F.Shallowbreathingisoneoftheannoyingsideeffectsofstress G.Howeverit'sbeensuggestedthat25to40timeswillbebeneficial
Whileit'sthebooksthatmakealibrarybeinginlovelysurroundingsmayprovideinspirationandhelpyoutoworkalittlebitharder.Herearesomeofthecoolestlibrariesoftheworld. LibraryofBirmingham﹣BirminghamU.K. ThenewLibraryofBirminghamissaidtobenotonlyBritain'sbiggestpubliclibrarybutalsothelargestinEurope.DesignedbyDutcharchitectsthisreplacementfortheBirminghamCentralLibrarywasopenedin2013andhasawealthofresourceswithinitswallsincludingadultandkids'librariesmusiccollectionsaShakespeareMemorialRoomandevenagymroom.Gardenscrowntheroofwhilethechangingseasonsbringvariationsintheshadowsandreflectionsinside. NationalLibraryofFrance﹣ParisFrance TheNationalLibraryofFrancewhichnowcontainsanastonishingcollectionof30milliondatesbacktothe14thcenturyandthisroyallibrarywassetupattheLouvrebyKingCharlesV.ThelibrarywasmovedtoRuedeRichelieusitein1868withmajordesignworkcarriedoutbyFrencharchitectsHenriLabrousteandfollowinghisdeathJean﹣LouisPascal.Herethereadingroomsareeleganceitself.Therearemorethanjustbookstobefound. StateLibraryofNewSouthWales﹣SydneyAustralia ThepublicStateLibraryofNewSouthWalesholdsthehonorofbeingtheoldestinstitutionofkindinAustralia.ItwasoriginallytheAustralianSubscriptionLibraryin1826butitwasn'tuntil1942thatitspermanenthomewasready.DesignedbySydneyarchitectWalterLibertyVernonandcompletedin1910themagnificentsandstoneMitchellWingisoneofthearchitecturalhighlights. SeattleCentralLibrary﹣SeattleWashingtonUSA SeattleCentralLibrary'sdistinctivedesignensuresitstandsout.ArchitectRemKoolhaasisoneofthenamesattachedtoitsdesign.Architectssoughttoenvelopthe11﹣storybuildingwithalayeroftransparencyusingaskinofglassandmetal.Thefinishedarticlehousesabout1.45millionbooksandotherthingsaswellasmorethan400computersavailableforpublicuse.Thebuildingwhichopenedin2004wasincludedontheAmericanInstituteofArchitects'listofAmerica's150favoritebuildingsin2007. 1Whichofthefollowinglibraryhasthelongesthistory? A.LibraryofBirmingham. B.NationalLibraryofFrance. C.StateLibraryofNewSouthWales. D.SeattleCentralLibrary. 2WhatcanyoudoinLibraryofBirmingham? A.Attendaconcert. B.Actaplay. C.Takesomeexercise. D.Enjoynewtechnology. 3WhatdoNationalLibraryofFranceandSeattleCentralLibraryhaveincommon? A.Theyhavecomputersavailable. B.Theyweremovedtoanewplace. C.Theywonawardsforarchitecture. D.Theyweredesignedbymorethanoneperson.
IdecidedtoskitotheNorthPole.ItwasafterIsawanadvertisementinanewspaperlookingforpeopletojoinateamtoski350milestotheNorthPole.Backin1996therehadneverbeenawomanfromtheUKwhohadaccomplishedthischallenge.IwonderedwhatitwouldbeliketosurviveintemperaturescoldenoughtofreezeyourfleshinsecondssoIsentofffortheapplicationform. Theapplicationformfullofpicturesofmaleexploresarrived.ThewordsAreyoumanenoughfortheultimate极限的challenge?mademeangryandevenmoredeterminedtogetontheteam. Over500individualsappliedforaplaceintheteamandtheselectionprocessincludedphysicalandpsychologicaltestsdesignedtopickthebestgroup.InonetesttherewasahugeropeladderwehadtoclimbandIfrozeatthetopbecauseIhaveafearofheights.Ithoughtmyhopeswerefadingasmostotherapplicantssailedpastleavingmebehind.ButtwoothershelpedmeoverandlaterIfoundoutthattheorganizerswerenotlookingforamazingindividualsbutgreatteamplayersandthismomenthadshownthemwhowouldtakecareofothersintheteam. Ihadrevealed显示myweaknessandinaplaceliketheArcticyouhavetobeyourselfasthereisnowheretohide.Thesepersonalitiesofaskingforhelpandshowingweaknessarenecessaryforwomentomaster. IrealizedthatbybeingmyselfIcouldsucceed.Iwasselectedfortheteam.IrealizedthatIcouldachievemorethanIeverimagined-moreimportantlybysharingmystorywithothersIcouldinspirethemtotakeastepintothenewworldandrevealmoreoftheirabilities. 1Howdidtheauthorreactonseeingtheadvertisement? A.Shegotcross. B.Shewasdetermined. C.Shegotfrightened. D.Shewashesitating. 2Whatdidtheorganizersviewasthemostimportantintheselectionofnewhands? A.Personalquality. B.Individual-ability. C.Spiritofteamwork. D.Couragetochallenge. 3Whatdoestheautherthinkofwomen'sshowingweakness? A.Beneficial. B.Shameful. C.Merciful. D.Disturbing. 4What'stheintentionoftheauthorinwritingthispassage? A.Toinspireustoprepareforourfuturegoal. B.Toadvisewomenhowtoturntoothers. C.Tomakesuggestionstoherteammembers. D.Toencouragepeopletoexploretheunknown.
WhenIwasfiveorsixyearsoldIrememberwatchingTVandseeingotherchildrensufferinotherpartsoftheworld.IwouldsaytomyselfWhenIgrowupwhenIcangetrichIwillsavekidsallovertheworld. At17IstartedmycareerhereinAmericaandbytheageof18Istartedmyfirstcharityorganization.Iwentontoteamupwithotherorganizationsinthefollowingyearsandmethelpedandevenlostsomeofthemostbeautifulsoulsternsix-year-oldJasminaAnemawhopassedawayin2010fromleukemia白血病whosestoryinspiredthousandstovolunteerasdonorsto2012whengrandmotherlostherbattlewithcancerwhichistheveryreasonandthedrivingforcebehindtheClaraLionelFoundationCLF.We'reallhuman.Andwealljustwantachanceachanceatlifeachanceineducationachanceatafuturereally.AndatCLFourmissionistoimpactasmanylivesaspossiblebutitstartswithjustone. Peoplemakeitseemtoohardtodocharitywork.Thetruthisyoudon'thavetoberichtohelpothers.Youdon'tneedtobefamous.Youdon'tevenhavetobecollege-educated.Butitstartswithyourneighborthepersonrightnexttoyouthepersonsittingnexttoyouinclassthekiddowntheblockinyourneighborhood.Youjustdowhateveryoucantohelpinanywaythatyoucan.AndtodayIwanttochallengeeachofyoutomakeacommitmenttohelponepersononeorganizationonesituationthattouchesyourheart.MygrandmotheralwaysusedtosayIfyou'vegotadollarthere'splentytoshare. 1Whatdidtheauthorwanttodoatayoungage? A.WatchTV. B.Growupquickly. C.Becomewealthy. D.Helpotherchildren. 2WhatdirectlycausedtheauthortocreateanddeveloptheCLF? A.Asix-year-oldkid'srequest. B.Hergrandmother'sdeathofcancer. C.Manyvolunteers'inspiration. D.Otherorganizations'encouragement. 3WhatdoestheunderlinedwordoneinParagraph2referto? A.Achance. B.Atask. C.Alife. D.Anorganization. 4Whatdoestheauthorsuggestpeopledointhelastparagraph? A.Dolittlethingstohelpthosearoundthem. B.Workhardtogetacollegeeducation. C.Challengetheirfriendstoofferhelp. D.Docharityworkwhateveryouare.
氮及其化合物对环境具有显著影响. 1已知汽车气缸中氮及其化合物发生如下反应 N2g+O2g═2NOg△H=+180kJ/mol N2g+2O2g═2NO2g△H=+68kJ/mol 则2NOg+O2g═2NO2g△H=kJ/mol. 2查阅资料2NOg+O2g⇌2NO2g的反应历程分两步 Ⅰ.2NOg⇌N2O2g快 Ⅱ.N2O2g+O2g⇌2NO2g慢 反应I的活化能E1与反应Ⅱ的活化能E2的大小关系为E1E2填“>”“<”或“=”2NOg+O2g⇌2NO2g的反应速率主要由反应填“I”或“Ⅱ”决定. 3温度为T1时在容积为1L的恒容密闭容器中充入0.6molNO2g发生反应2NO2g⇌2NOg+O2g△H>0达平衡时cO2=0.2mol/L. ①反应的平衡常数K=. ②实验测得v正=k正•c2NO2v逆=k逆•c2NO•cO2k正k逆为速率常数仅受温度影响.当温度为T2时反应达到平衡状态若k正=k逆则T1T2填“>”或“<”得出该结论的理由是. 4NO2﹣是水体中的主要污染物.碱性条件下强氧化剂过硫酸钠Na2S2O8可脱除水体中的NO2﹣该反应的离子方程式是. 不同温度下达到平衡时NO2﹣的脱除率与过硫酸钠初始浓度的关系如图所示. 比较ab点的反应速率vavb填“>”“<”或“=”.若要提高NO2﹣的脱除率可以采取的措施有写出一点即可.
假定你是李华.在上周的国际文化节上你结识了喜欢中国书法的交换生Peter.你准备赠送他一本英文版中国书法鉴赏.请给他写一封电子邮件内容包括 1.写信目的 2.简介该书 3.询问地址. 注意 1.词数100左右邮件的开头与结尾己给出 2.可以适当增加细节以使行文连贯 3.参考词汇书法calligraphy鉴赏appreciation. DearPeter Howarethingswithyou? Lookingforwardtoyourreply. Yours LiHua
假定你是李华收到英国笔友George的邮件请你介绍中国家庭聚会的情况饮食时间活动等.请给他写一封邮件. 注意1.词数100左右 2.可适当增加细节以使行文连贯. DearGeorge Yours LiHua
25℃时向等物质的量浓度的Na2S和Na2CO3的混合溶液中滴加NiNO32溶液产生NiSNiCO3两种沉淀溶液中阳离子阴离子浓度关系如图所示[已知25℃时KspNiS=3.0×10﹣19KspNiCO3=1.0×10﹣7].下列说法正确的是
Forthefirsttimein94yearsthePalaceMuseumhasextendeditsopeninghoursallowingthepublictocelebratetheLanternFestivalatnightintheancientpalace. About3000luckyvisitorsreceivedfreeticketsfromthegovernmentamong1wasZhangZhifua77-year-oldpublicsecurityvolunteer.It'samarkofgratitudeforhervolunteerwork.Itis21trueanhonortobegrantedthisspecialprivilegeZhangsaid. Toguaranteethe3safeofthepalacefestivalorganizers4planthisyear'sLanternFestivaleventusedLEDlightsratherthantraditionalpaperlanternsandredcandles.It'safascinatingeventforvisitorstoabsorb5theyinthefestiveatmosphereinthemuseum.DiscussionofthePalaceMuseum'snewlooklitupsocialmediafollowingTuesday'sdisplay. SincehebecamedirectorofthePalaceMuseumShanJixiang6bringmanychangestotheworld's7largeimperialcomplex建筑群.Onceinaspeechthe64-year-olddirectorsharedhisideaabouthowtomaketraditional8treasurecomealiveagain.Hesaid9matterstoamuseumisnothowmanyvisitorstheyhavebuthowclosetheyare10people'sdailylives.
氮及其化合物在科学研究和化工生产等领域都有着广泛的应用.请回答下列问题 1与氮元素同族的第四周期元素的基态原子价层电子轨道表达式为. 2尿素分子的结构简式为CONH22该分子中σ键数目为实验测得分子中的所有原子在同一平面内尿素中的碳氧键125pm比典型的碳氧双键121pm长而尿素中的碳氮键137pm比典型的碳氮单键147pm短说明分子中存在. 3氨分子构型为氨晶体中氨分子中的每个H均参与一个氢键的形成1mol固态氨中有mol氢键. 4Cu3N晶体的晶胞如图所示.晶胞边长为anm晶胞中N3﹣位于Cu+所形成的正八面体的体心该正八面体的边长为nm.
铁元素是人体不可缺少的微量元素. 1基态铁原子价电子排布式为. 2KSCN可用于Fe3+的检验其对应的硫氰酸分子H﹣S﹣C≡N中σ键和π键之比为C原子的杂化方式为. K3FeCN6可用于Fe2+的检验其阴离子的配体是. 3不锈钢常含有铬Cr和镍元素. ①第一电离能的大小FeCr填“>”“<”或“=”. ②已知Ni2+和Fe2+的离子半径分别为69pm和78pm根据岩浆晶出规则岩浆冷却过程中NiO和FeO中先结晶的是原因是. 4铁镁合金是目前已发现的储氢密度最高的储氢材料之一其晶胞结构如图所示. ①距离Mg原子最近的Fe原子个数是. ②若该晶体储氢时H2分子在晶胞的体心和棱心位置则含Mg96g的该储氢合金可储存标准状况下H2的体积约为L.
设NA为阿伏加德罗常数的值.已知C2H4和C3H6的混合物的质量为14g有关该混合物的说法错误的是
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词符号∧并在其下面写出该加的词. 删除把多余的词用斜线\划掉. 修改在错的词下面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. WhenIwasveryyoungIstayedatmyhometownwithmygrandma.Shewasadiligentwoman.Shelikestogrowvegetablesortakescareofallthehouseworks.Thoughmyparentsoftenaskhertoquittheworkmygrandmaneverlisten.Shetakesthatshedoesashergreatjoy.IunderstandherbecauseIseehersmileandsatisfiedwithlife.Severalmonthsbeforemyfatherboughtforheranewsmartphone.AndduringtheSpringFestivalIinstructedheronhowemailandusetheInternet.AsidefromemailingshethinksitfeelsgreatlytotalktotheirgrandchildrenonWeChat.
化学与人类生活密切相关.下列说法正确的是
金属蚀刻加工过程中常用盐酸对其表面氧化物进行清洗会产生酸洗废水.pH在1.5左右的某酸洗废水中含铁元素质量分数约3%其他金属元素如铜镍锌铬浓度较低工业上综合利用酸洗废水可制备三氯化铁.制备过程如下 相关金属离子生成氢氧化物沉淀的pH如下表所示 回答下列问题 1“中和”时发生反应的化学方程式为调节pH至范围有利于后续制备得纯度较高的产品. 2酸溶处理中和后的滤渣使铁元素浸出.滤渣和工业盐酸反应时不同反应温度下铁浸出率随时间变化如图a所示可知酸溶的最佳温度为.按照不同的固液比滤渣和工业盐酸的投入体积比进行反应时铁浸出率随时间变化如图b所示实际生产中固液比选择1.51的原因是. 3氧化时可选氯酸钠或过氧化氢为氧化剂若100L“酸溶”所得溶液中Fe2+含量为1.2mol•L﹣1则需投入的氧化剂过氧化氢的质量为. 4氧化时除可外加氧化剂外也可采用惰性电极电解的方法此时阴极的电极反应式为电解总反应的离子方程式是. 5将得到的FeCl3溶液在HCl气氛中过滤洗涤干燥得FeCl3•6H2O晶体.
FeSO4是一种补血剂常温下久置易变黄一般认为是Fe2+被氧化为Fe3+的缘故. 1已知 ①Fe2+aq﹣e﹣=Fe3+aq△H1=akJ•mol﹣1 ②O2g+4e﹣+4H+aq=2H2Ol△H2=bkJ•mol﹣1 则FeSO4在酸性溶液中变质的热化学方程式为. 常温下配制不同pH的0.lmol•L﹣1FeSO4溶液研究溶液中Fe2+被氧化的情况结果如图所示假设反应过程中溶液体积不变. 2pH=5.5的环境下反应在0~15min的平均速率vFe2+=增大溶液pHFe2+被氧化速率填“增大”“减小”或“无影响”. 3平衡常数的计算中气态物质常以压强代替其浓度Fe2+在酸性环境下被氧化的平衡常数K的计算表达式是常温下该反应的平衡常数为2.5×1032L4•atm•mol4﹣1相对较大下列说法正确的是.填正确答案标号 a.Fe2+转化为Fe3+的趋势大b.Fe2+转化为Fe3+的速率大 c.反应进行得较为彻底d.酸性条件下Fe2+不会被氧化 4pH=13的环境下Fe2+被氧化变质可以理解为 第一步Fe2++2OH﹣=FeOH2↓ 第二步写化学方程式 当该氧化反应达到平衡时cFe2+/cFe3+4.0×1022填“>”“<”或“=”.已知的Ksp[FeOH3]=2.5×10﹣39Ksp[FeOH2]=1.0×10﹣15. 5根据上述分析配制FeSO4溶液的正确方法是加入适量的铁粉和填试剂
TheJapanesehavealwaysbeenattheforefrontatdeploying利用robotstoperformjobsthataretraditionallydonebyhumans.OverthepastyearhumanoidrobotshavebeenseenhelpingcustomersattheMitsubishiBankandevenfillinginforhumansciencecommunicatorsatmuseums.ThereforeitisnotsurprisingtohearthatthecountryhastheworldsfirsthotelthatisstaffedalmostentirelybytheAndroids! Theaptly巧妙地namedHenn-nastrangeinJapaneseHotelwhichopeneditsdoorsonJuly17islocatedatNagasaki'sHuisTenBoschthemepark.ItistheideaofHideoSawadaaJapanesebusinessmanwhoisfascinatedbythepossibilityofreplacinghumanswithrobots.Hisaimistohavethisfuturistichotelberunmainlybytheintelligenthumanoids. Guestschecking-inarewelcomedbyafamilyfriendlyEnglish-speakingrobotwearingabowtieandbell-hop侍者hat.Thoughexperiencedathisjobhedoesrequestguestsnottoaskhimadifficultquestionsinceheisafteralljustarobot!Thoseseekingamoreregularexperiencecanapproachthehuman-likeJapanese-speakingrobot. Whenreadyvisitorscanrequesttherobotporterstohelpcarrybelongingstotheirroom.Thosethatneedtostowawayvaluablescanhandthemtoahelpfulrobotwhowillplacetheminsideanindividualsafeboxinexchangeforasmallfee.Aone-foot-highconcierge管理人isavailabletoprovideinformationaboutthehotel'samenities便利设施nearbyattractionsandevenorderataxiifneeded. Sohowmuchdoesitcosttoliveinthiscrazycoolhotel?Itdependsonwhenyoudecidetogo.Duringthelowseasonguestscangetawaywithpayingaslittle$60anightforabasicroom.Howeverduringthepeakseasonwhenratesaredeterminedbyanonlineauctionthepricecangetashighas$153. 1WhatisHideoSawadainterestedin? A.Makingdifferentkindsofrobots. B.Takingtheplaceofhumanswithrobots. C.Settingupmorehotelsrunbyrobots. D.Makingrobotsmoreintelligent. 2Fromthethirdparagraphwecanknowthat. A.theJapanese-speakingrobotwelcomestheguests. B.thehumanlikerobotcanspeakJapaneseandEnglish. C.thehuman-likerobotisbetterskilledatitsjobthantheotherrobots. D.theEnglish-speakingrobotcananswersimplequestions. 3Theunderlinedphrasestowawaymostprobablymeans. A.purchase B.change C.store D.replace 4Whatcouldbethebesttitleforthepassage? A.World'sfirstrobot-staffedhotelisopenforbusiness. B.Japanesetopsthefirstinmakingrobots. C.RobotscanreplacehumansinJapanesehotels. D.TheaptlynamedHenn-naHotelatathemepark.
Amaterialcanbereallyspecialwhenitwasnamedaftertheplacewhereit1createoriginally.That'certainlythecase2china.Andofalltypesofchinawhiteporcelain瓷isamongthemostfamous. Nowadaysthe3traditionmaterialhastakenonamodernlookinthe4handoffourChineseartistsintheModernWhitePorcelainExhibition.Andthekeywordhereismodern.Oneoftheworks5beaporcelainboat.Butlook6attentiveandyou'11seethattheboat7buildwithporcelainlookslikeatakeoutbox.Insidetheboatisastatueofababy.Thebabystandsforhumansandtheboatis8supportslife.Itsuggestswemayhavedonesomedamageto9environmentandthatwe'retreatinglifelikefastfood. Allthefourartistsgavewhiteporcelainamodemstyleeachin10theyownway.Andthisiswhattheexhibition'sthemecomesfrom.It'sadialoguebetweenthepastandthepresent.
Thereismoreofaconnectionbetweenfoodandculturethanyoumaythink.Onanindividuallevelwegrowupeatingthefoodofourculture.Itbecomesapartofwhoweare.Manyassociatefoodfromourchildhoodwithwarmfeelingsandgoodmemoriesandittiesustoourfamiliesholdingaspecialandpersonalvalueforus.Foodfromourfamilyoftenbecomesthecomfortfoodweseekasadultsintimesoffrustrationandstress. Onalargescaletraditionalfoodisanimportantpartofculture.Italsooperatesasanexpressionofcultureidentity.Immigrantsbringitwherevertheygoanditisasymbolofpridefortheircultureandmeansofcopingwithhomesickness. Manyimmigrantsopentheirownrestaurantsandservetraditionaldishes.Howeverthefooddoesnotremainexactlythesame.Somematerialsneededtomaketraditionaldishesmaynotbereadilyavailablesothetasteandflavorcanbedifferentfromwhattheywouldprepareintheirhomecountries.Additionallyimmigrantsdonotonlyselldishestopeoplefromthesamecountriesasthembuttopeoplefromdifferentcountries.Thereforetheyhavetomakesmallchangesabouttheoriginaldishestocatertoawiderrangeofcustomers.Thosechangescancreatenewflavorsthatstillkeeptheculturalsignificanceofthedishes. Weshouldembraceourheritage传统throughourculture'sfoodbutalsobecomemoreinformedaboutotherculturesbytryingtheirfood.Itisimportanttorememberthateachdishhasaspecialplaceintheculturetowhichitbelongsandisspecialtothosewhoprepareit.Foodisawindowintocultureanditshouldbetreatedassuch. 1What'sthefunctionoffoodmentionedinthearticle? A.Tohelpmotivatehomesickness. B.Toshownationalidentity. C.Toreflectacountry'shistory. D.Toshowacommunity'ssuperiority. 2WhatdoestheunderlineditinParagraph2referto? A.Thespecifictraditionalfood. B.Thenationalculture. C.Atraditionalexpressionoffood. D.Theold-fashionedtaste. 3Whydosomeimmigrantshavetochangetheoriginaldishesintheirrestaurant? A.Toattachculturalimportancetotheirdishes. B.Toannouncethebeginningoftheirlifeonforeignsoil. C.Tomakethedishespopularamongcustomers. D.Topresenttheirownfoodcultureinanewway. 4What'stheauthor'sattitudetowardsdifferentfoodcultures? A.Negative. B.Balanced. C.Unfair. D.Unchangeable.
SydneyStreetArtWalkingTour Youcangetamuchricherexperiencebytakinga2-hourwalkingtourinthecompanyofartistsanddesignerswhocanexplainthestoriesbehindthework.WanderthroughthestreetsofSydneyanddiscoveritsrichcultureofgraffitimuralismandtaggingwhilelearningabouttheartists.Meetandgetinsightfromlocalcharactersandtoasttheexperiencewithanincludedcraftbeer. SydneyBondiBeachWalkingTour ExperiencethesunsandandsurfatAustralia'smostpopularbeachwiththis1.5-hourwalkingtourofBondiBeach.SeewherethefamousBondiRescueTVshowisfilmedandlearnhowBondiBeachbecameahotspotfortouristssurfersandfamouspeople.AlongthewayadmiretheBondiAboriginalrockartsitesposeforphotosbytheBondiPavilion. SydneyVividLightWalkingTour MakethemostofVividLightSydney'sspectacularlightfestivalwiththissmallgroupwalkingtour.Overthecourseof2hoursyourlocalguidewillleadyouthroughthecity'sopen-airgalleryoflightequipmentstoppingatcelebratedworks.LearnabouttherichpastsofCircularQuayandTheRocksasyoumakeyourwaythroughthesehistoricneighborhoods. OperaHouseGuidedBackstageTour GetauniqueexperienceofOperaHouseonabackstagetourfortheperformingarts.Yourguidesharesstoriesaboutthereal-lifedramasbehindthecurtainandwell-knownhistory.Gobehindthescenestoseepartsoftheoperahousenormallyreservedforstaffandperformers.WrapupthisfascinatingmorningtourbysittingdownwithyourcompanionsforafullAustralianbreakfastintheGreenRoomwhereperformersrelaxbeforegoingonstage. 1Whocanhelpyouifyouwanttoappreciatethestreetart? A.Yourguide. B.Localpeople. C.Artistsanddesigners. D.Artstudents. 2WhatcanyoudoontheOperaHouseGuidedBackstageTour? A.Enjoyinterestingstories. B.Admiretherockartsites. C.WatchthefamousTVshow. D.Meetwell-knownperformers. 3Whichtourisbetterexperiencedduringthenight? A.SydneyStreetArtWalkingTour. B.SydneyBondiBeachWalkingTour. C.SydneyVividLightWalkingTour. D.OperaHouseGuidedBackstageTour.
化学与生产生活密切相关.下列物质的使用不涉及化学变化的是
WhilevisitingtheNorthpoleinwintermaynotbeatthetopofyourbucketlisttheever﹣changingICEHOTELwhichopeneditsdoorstovisitorsonDecember14thisyearmaychangeyourmind.200kmnorthoftheArcticCircleintheSwedishvillageofJukkasjārvithehotelwhichiscarvedentirelyfromiceisrebuiltannually. The35roomsbuilttoaccommodatevisitorsonallkindsofbudgetsvaryfromexpensivesuitestobasicroomsthatarefurnishedwithjustanicybedandareindeerskin.AmongthehighlightsthisyearistheSpruceWoodssuite.SculptedbyChristopherPascoeandJennieO'KeefeofCanadaitdescribesacampingscenecompletewithaclassicmicrobusaforestandevenanartificialcampfire. Thereisalsotheartfully﹣carvedLivingOceansuitetoremindvisitorsoftheimportanceofsavingouroceans.Theroomisfullofcarvedsealifethatincludescoralandasharkswimmingrightovertheicebed.Thesuiteisinspiredbyglobalwarmingandtheoverfishingthataffectsouroceans.saysartistJonathanPaulGreen.IalsothinktheideaofusingfrozenwaterfromariverinnorthernSwedentocreateanoceanwithshellsfishandcoralsisexciting. ThenearbyHavensuiteisamagicalgateoficeguardedbytwolargeanimals.WeareinspiredbythemeetingbetweenpeopleandwanttocreateanexperiencethatinvitescuriosityandcreativitysaysartistJonasJohansson.Itfeelslikeadreamtogettoworkwithicethatallowsourloveforlightshineandreflectiontowanderfreelyfromthoughttocreation. Regardlessofwhethervisitorsselectthecarvedsuitesorthebasiciceroomsthetemperatureisalwayssettoabone﹣chilling﹣5℃!Thatiswhyguestsareadvisedtosnuggle蜷缩upinsidesleepingbagsandwearglovesandwinterhatsallnight.Notsurprisinglymostendupspendingjustasinglenightatthisuniquehotelbeforemovingontotheconventionalandwarmerhotelsnearby. 1Whatdoestheunderlinedphrasebucketlistmeaninthetext? A.Ashoppinglistofbuckets. B.Alistoftravellingdestinations. C.Alistofexpensivehotels. D.Alistofexcitingideas. 2Whatcanweknowabouttheicehotel? A.Itisrebuilteveryyear. B.Itsroomsareexpensive. C.Itorganizescampingactivities. D.Itliesinacoastalcity. 3WheredoestheinspirationofLivingOceansuitecomefrom? A.Artandliterature. B.Oceanlifeandvoyage. C.Climatechangesandhumaninfluence. D.Themeetingofpeople. 4Whichofthefollowingisthebesttitleforthetext? A.AnAdventuretotheNorthPole B.AnExperienceClosetoNature C.ATasteofColdANightinaVillage D.AWinterDestinationSweden'sIceHotel
OnDec.6KelseyZwickboardedFlight588fromOrlandotoPhillywithLucyoneofher11-month-oldtwindaughters.Lucywasborn11weeksprematurely早产and1fromseverelungdiseaseasaresultofacomplication并发症ofthat.Thebravebabygirlwasonoxygen2untilrecently.TodayLucyneedsoxygenatnightandwhile3onesmallgooddeedremindedZwickhow4sheandherhusbandYuritrulyare. Tothe5in2D.Idon'tknowyoubutIimagineyousawus6.Iwaspushingastroller婴儿车hadadiaper尿布bagonmyarmandalso7anoxygenmachineformydaughterZwickwroteonherFacebookpost.We8theplanesatdowninourwindowseatandmade9tothosearoundusabouthavingtositbymyyelling-but-happybaby.Theflightattendantcameoverandtoldmeagentlemanwaswaitingto10seatsshewrote.Youweregivingupyourcomfortablefirst-classseattous.Notableto11tearsIcriedmywayupthe12whilemydaughterLucy13!Shefeltitinherbonestoo…realpuregoodness.Ismiledandthankedyouasweswitchedbutdidn'tgetto14youproperlythemomcontinued. So…thankyou.Notjustfortheseatitselfbutfor15.Forseeingusandrealizingthatmaybethingsarenot16easy.Fordecidingyouwantedtoshowarandomactof17tous.Ican'twaittotellLucysomeday.Inthemeantime…wewillpayit18. Zwick'sstorytouchedtheheartsofmanygivingriseto19commentsonthepostthathassincebeen20over164000times. 1A.recovers B.suffers C.results D.benefits 2A.test B.health C.survival D.support 3A.playing B.flying C.sleeping D.growing 4A.astonished B.amused C.blessed D.anxious 5A.man B.attendant C.assistant D.guide 6A.somewhere B.anywhere C.nowhere D.everywhere 7A.filling B.pumping C.following D.dragging 8A.booked B.reserved C.pre-boarded D.quit 9A.complaints B.comments C.offers D.jokes 10A.choose B.switch C.accept D.occupy 11A.burstinto B.giveback C.holdback D.breakinto 12A.passage B.airport C.flight D.pilot 13A.shouted B.crawled C.talked D.laughed 14A.meet B.thank C.recognise D.accept 15A.noticing B.donating C.reminding D.forgiving 16A.just B.right C.always D.ever 17A.forgiveness B.advantage C.kindness D.donation 18A.forward B.downward C.backward D.toward 19A.passive B.supportive C.possible D.negative 20A.made B.chosen C.researched D.shared
IjustcountedhowmanyforeignlanguagesI'vestudiedsofarinmylifeandit'sbeentwelve! IalwaysfollowmyinterestsandfindwaystoputmylanguagelearningintothingsI'malreadyinterestedin.Iliketoreadblogs博客inotherlanguages.1.ForthemostpartbloggerstendtowritethesamewaytheyspeaksoIdon'thavetoworrymuchaboutadoptingstrangetermsthatareonlyusedinwriting. Moviesarealsoareallygoodtoolespeciallyifyoucanfindsubtitlesinthelanguageyou'relearning.2theywillstillkeepyourbrainlisteningandreadinginthesamelanguage.Musicisanotherwaytostartlisteningtothingsinyournewlanguage.PersonallyI'msobadatunderstandinglyrics歌词eveninEnglishsothisonedoesn'treallyworkformebutIhavefriendswholearnalanguagethroughlyrics.Gamesareofcoursealsoanexcellentwayofstudyinganewlanguage.Alotoflanguagelearningcomputerprogramsincludegames.I'msupercompetitiveandifIplayanyofthemIcanbehookedforhours.3. Whentheinitialexcitementoflearninganewlanguagebeginstofadeitcanbehardtostickwithit.ThehardestbitformeiswhenI'mcomfortableenoughwithalanguagetounderstandmostthingsandmakemyselfunderstood.I'mactuallystuckatthisstageinNorwegian.4.IdeallyIshouldsignuptotakeabiglanguageexam.EachtimeIstartgettingself﹣satisfiedit'stimetotakeanewcourseorsignupforonlinelessonsortakeupsomesortofchallengethatwillrequiremetolevelupmyskills. 5.ThebestlanguageclassI'veevertakenwasmybeginner'sRussiancourseatuniversitywheremyprofessorneverusedanyEnglish.ItgottothepointwhereIwouldkindofjustforgetaboutEnglishwhileinRussianclasswhichhelpedmetoreallyimmersemyselfintheRussianlanguageanddoawholelotwiththelimitedRussianIhad. A.That'sreallyuncomfortable B.Whateverlanguagesthey'retranslatedinto C.IalsotrytothinkinthelanguageI'mlearning D.It'stimewellspentifI'mlearningthelanguage E.Computergamesalwaysmakemefeelwornout F.Thoughtheydon'talwaysexactlymatchwhat'sbeingsaid G.Ifoundthemtheperfectlearningtoolbecausethey'reusuallywritteninorallanguage
AwomangraspedherphonetoherheartthewayaministermightholdaBible.Shewasanxioustotakeapictureofabunchofflowersthatsatnot10feetawaybutfirstshehadtogetthroughacrowdofotherspushingtodothesame.ThecauseofthiswasBouquetstoArtoneofthemostpopularannualeventsatthedeYoungMuseuminSanFrancisco.Forthe34thyearartistswereaskedtocreateflowerbunchesthatrespondtopiecesofartondisplayfromancientcarvingstocontemporarysculptures.It'stimetotakeaphototopostonInstagrambuttothepointthatithasbecomeaproblem. InrecentyearsthedeYoungreceivedmorethanathousandcomplaintsfrompeoplewhofeltthatcellphoneshadruinedtheirexperience.Infactinstitutionsoffineartaroundtheworldfacesimilarproblemsasthedesiretotakephotographsbecomesahugedrawformuseumsaswellassomethingthatupsetssomeoftheirvisitors.SothedeYoungrespondedwithakindofcompromisecarvingoutphotofreehoursduringtheexhibition'ssix-dayrun. Onecommoncomplaintintheongoingdebatesovertheeffectofsocialmediaonmuseumcultureisthatpeopleseemtobemissingoutonexperiencesbecausetheyaresobusycollectingevidenceofthem.ArecentstudyinthejournalPsychologicalSciencesuggeststhereissometruthtothisitfoundthatpeoplewhotookphotosofanexhibitratherthansimplyobservingithadahardertimerememberingwhattheysaw.Buttheissueiscomplicatedfortheprofessionalsrunningmuseums.LindaButlerthedeYoung'sheadofmarketingcommunicationsandvisitorexperienceacknowledgesthatnoteveryonewantsamuseumtobeaphoto-takingplayland.YetalotofotherpeopledoandshethinksthatthedeYoungisinnopositiontojudgethatonemotivationforbuyinga$28ticketismorevalidthananother.Ifweremovedsocialmediaandphotographyshesayswewouldriskbecominglesspopular.Ifthisisabattlesignsindicatethatthepro-phonecrowd亲手机人群hasalreadywon. 1WhatwerethecrowdeagertodoinParagraph1? A.ToholdaBible. B.Toadmireflowers. C.Totakeaphoto. D.Toseetheexhibition. 2HowdidthedeYoungrespondtothecomplaints? A.Bysettingperiodswithoutphoto-taking. B.Bymakingtheexhibitionfreeofcharge. C.Bycompromisingwithotherinstitutions. D.Bygivingextratimetotakephotosfreely. 3Whatcanweinferabouttheuseofsocialmediainmuseumsaccordingtotherecentstudy? A.Ituncoversthetruth. B.Itaccumulatesevidence. C.Itcausescomplaints. D.Itplaysanegativerole. 4WhichofthefollowingmayLindaButlersupport? A.Cateringtovisitors. B.Reducingadmissionprices. C.Reservingjudgementinpublic. D.Banningsocialmediaandphotography.
微信热传的“苯宝宝表情包”可看作是由苯衍生的物质配以相应文字形成的如图.下列说法正确的是
室温下将1L0.3mol⋅L﹣1HA溶液与0.1molNaOH固体混合使之充分反应得到溶液a.然后向该溶液中通入HCl或加入NaOH固体忽略体积和温度变化溶液pH随通加入物质的量的变化如图.下列叙述错误的是
曾在南充求学和工作过的青年学者孙旭平及其领衔团队近日成功利用Mo2N纳米催化剂在0.1mol•L﹣1盐酸溶液中进行电催化固氮装置如图所示在一定电压下具有较高的产氨速率.下列判断错误的是
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