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科学源于生活又高于生活，日常生活中的许多现象，往往隐含着科学道理，学习科学要善于观察、善于发现． 【生活发现】①自行车在烈日下暴晒，车胎容易发生爆炸； ②压缩一段封闭在注射器内的空气，发现越压缩...
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日常生活往往是非审美的
人们日常生活中的下列现象源于第二次工业革命的有
打电话拜年
乘公共汽车上班
坐火车旅游
网上炒股
人们日常生活中的下列现象源于第二次科技革命的有①打电话②乘电梯③电灯照明④网上聊天
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科学源于生活有高于生活日常生活中的许多现象往往隐含着科学道理学习科学要善于观察善于发现【生活发现】①
下列日常生活现象源于互联网的是①发电子邮件②开着汽车出去郊游③网上炒股④网上购物
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人们日常生活中的下列现象源于第二次科技革命的有①打电话拜年②乘公共汽车上班③坐飞机旅游④网上炒股
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人们日常生活中的下列现象源于第二次工业革命的有①坐火车旅游②打电话拜年③周末看电影④乘汽车上班
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生活垃圾是指在产生的固体废物以及法律行政法规规定视为生活垃圾的固体废物
日常生活中
日常生活中或者为日常生活提供服务的活动中
为日常生活提供服务的活动中
居民生活和商业活动中
教育起源于日常生活中儿童对成人的无意识的模仿
人们日常生活中的下列现象源于第一次科技革命的有①打电话拜年②乘火车上班③坐轮船旅游④网上炒股
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磁是一种非常普遍的现象我们的日常生活中随处可见从电子设备电力系统到通讯自动化控制无处不用到磁效应和磁
磁的应用范围会越来越广
新兴的环境科学也可能存在磁现象
日常生活中都是磁的现象
磁现象在生活中随处可见
手的功能位置是
日常生活中写字的位置
日常生活中握拳的位置
日常生活中握茶杯的位置
手指伸直张开的位置
示指捏纸的位置
老年人日常生活功能状态的评估包括基本的日常生活能力工具使用日常生活活 动和高级日常生活活动
现代人们的生活水平不断提高在许多方面得益于化学科学的发展请你从日常生活中的衣食住行各方面列举事例来证
在日常生活和学习中许多现象包含着重要的物理知识请你举三个应用不同物理知识的例子并说明用了哪些物理知
简述测量活动在日常生活和科学研究中的重要作用
竹筒烧饭源于壮族日常生活中独特的野炊方法
在许多国家茶已经成为人们日常生活中的饮品种植茶树最早起源于
朝鲜
日本
美国
中国
试述日常生活中该如何科学预防心血管病
磁是一种非常普遍的现象我们的日常生活中随处可见从电子设备电力系统到通 讯自动化控制无处不用到磁效应和
磁的应用范围会越来越广
新兴的环境科学也可能存在磁现象
日常生活中都是磁的现象
磁现象在生活中随处可见
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BANG!thedoorcausedareverberation回声.ItwasjuststandingtherewithfatherstandingononesideandIontheotherside. Wewerebothingreatanger.Neversetfootinthishouseagain!stormedfather.WithtearswellingupinmyeyesIrushedoutoftheflatandranalongthestreet. Thestreetlightswereshiningcausingrathersad﹣feeling.Iwanderedaimlessly. Ayoungfatherwhoheldachildinhisarmswalkedpastme.IfeltasifIsawmychildhoodfromanotherspacehappyandcarefree. Butnow…Idon'tknowwhetheritisbecauseIhavegrownuporbecausedadisgettingold.Wedifferinourwaysofthinking.Healwaysputhisopinionsandcodesofbehavioronme.WheneverIdosomethingwrongheneveradmitsit.Wearejustliketwopeoplecomingfromtwodifferentworlds.Itfeelslikethereisanirondoorbetweenusthatcanneverbeopened. Iwanderedthestreetswithoutadestinationinmind.Myheartwasfrozenonthishotsummernight.AsIwalkedontherewerefewerandfewerpeopleonthestreetsuntilIhadonlythestreetlightstokeepmecompany.WhenIfinallyreachedthehigh﹣riseapartmentblockinwhichIlivedIsawthatthelightwasstillon. IthoughttomyselfIsfatherwaitingformeorishestillangrywithme? Infactitwasnothing.Perhapsdadwasthrowingawaysomeofhisoldstamps.Perhapshethoughttheywereuseless.IneverhadthecouragetotellhimthatIlikedcollectingstamps.Ican'tstandhisoutrageous蛮横的wordsIcan'tthrowyouawayletalonetheseoldpapers? Allthelightswereoffexceptfather's. Dadwasalwayslikethis.Maybehedidn'tknowhowtoexpresshimself.Aftershoutingatmehenevershowedanymercyoranymomentsofregret.Afteranargumenthehasthehabitofcreeping蹑手蹑脚upinmysleepandthentucking掖盖meunderneaththecovers. Thiswashowhealwayswas.Hehasbeenaleaderforsolongthattellingeveryoneelsewhattodohasbecomehissecondnature. Thelightwasstillon.AmIwrong?Iwhisperedmaybe…WiththekeyinhandIwasasnervousasIhadeverbeen.AtlastIdecidedtoopenthedoor.AssoonasIopenedthedoortearsrandownmycheeks.IsuddenlyrealizedthattheirondoorthatIhadimaginedbetweenusdidnotexistatall.Love﹣itsecondtonone. 1Decidewhichisthebestorderofthefollowingaccordingtowhathappenedinthepassage. a.Iopenedthedoorandenteredthehouse. b.SadlyIranoutintothestreet. c.IreachedtheplacewhereIlivedandsawmyhousestillbrightlylit. d.Ithoughtofmyfather'skindnesstowardsme. e.Iwalkedaboutinthestreetwithoutanyaim. A.bedca B.beacd C.becad D.becda 2Whydoyouthinkthefatheroftenshoutsathisson? A.perhapsthefatherisgettingolderandolder. B.perhapsthesonhasalreadygrownup. C.perhapstheyneveragreewitheachother. D.perhapsthefatherhasgotusedtodoingthat. 3Whatconclusioncanyoucometoafterreadingthepassage? A.Thefathertreatshissoninanunfairway. B.Thefatherisactuallykindtohisson. C.Thefatherisneitherkindnorcrueltohisson. D.Thefatherisalwaysfindingfaultwithhisson.
中国健儿武大靖在平昌冬奥会短道速滑男子五百米决赛上获得金牌下列运动装备材质不属于有机化合物的是
下列有关生物学实验的叙述正确的是
HowtoBecomeCleverer Onceaboycametoaskafishermanhowtobecomeclevererbecausehismotheralwayscalledhimfoolishboy. That'seasyansweredthefisherman.Iknowonewaytomakeyoubecomecleverer. Really? Ofcourse.Itissaidafishheadisgoodforbrain.Ifyoueatoneyou'llbecomeclevererindeed.Payonlythreepoundsforonefishhead.Theboypaidhimthreepoundsandthefishermancutoffafishheadandhandedittohim. Arawfishheadisnotgood﹣notevenforahungryboytoeatbuttheboyateitupintwogulps. Doyoufeelanything?askedthefisherman. Notinmyheadsaidtheboy. Theboylayonthegroundandthought.Onewholefishcostsonlytwopounds.Ihadpaidhimthreepoundsforthefishhead.Whycouldn'tIhavethewholefishforsoupaheadforbrainandonepoundleftover?Hejumpedupandshoutedatthefisherman.Youthief!Youarefoolingme!ThefishermanlaughedsayingThefishheadworksnowyousee. 1Theboyateuptherawfishheadonlyintwogulpsbecausehe. A.enjoyit B.wantedtotasteit C.tookitasagoodmedicine D.wasafoolishboy 2Theboycametothefishermaninorderto. A.buyafishhead B.askthefishermanaquestion C.buyawholefish D.AandC 3Theboypaidthreepounds.Heshouldhavehad. A.awholefish B.afishheadandonepoundback C.awholefishandonepoundback D.awholefishafishheadandonepoundback 4helpedtheboybecomecleverer. A.Agoodmeal B.Therawfishhead C.Nothing D.Whathadhappened
NoticeforTouriststoBeijingExpo2019 The2019BeijingHorticulturalExpo园博会fromApril29toOctober7isanopportunityforinternationaldiscoverywhereculturalelementsofdifferentplacesinChinaareondisplayaswellasgardensandbuildingsabouteachcountry'swonderfulcultureandhistory.Hereisanoticeforwhoeverplanstocome. QuickEntrybyShowingIDCards TomakesureyourquickandorderlyentryintotheExpoSite.pleasewaitinlinesandgetyourIDcardreadyforpre﹣checkticketcheckandsecurityinspectionbeforeentering.Duringtheticketcheckthosewhoholddiscountedticketsmustprovidethematerialsaboutdiscount. SafeTourtotheExpo Consideringyourpersonalsafetypleasedon'ttakeanythingthatmaydisturbothervisitorsortheorderoftheExpoSitesuchaspetskitesandspeakers.Exceptforwheelchairsfortheelderlyandthedisabledandstrollers婴儿推车forchildrennovehicles机动车辆areallowedtoentertheExpoSite TakingActiontoProtecttheEnvironment Tocreateagreenbeautifulenvironmentforyourselfandotherspleasefollowthetravelrules.protectpublicbuildingskeepenvironmentcleanandcareplantsgrowingintheExpoSite.Behaviorssuchasclimbingordestroyingstructuresandexhibitsarenotpermitted. OrderlyTravelbyLimitingtheNumber ForthesafetyofvisitorssometimesstaffmembersmaylimitthenumberoftouristsintosomegardensandbuildingsintheeventofovercrowdingThankyouforyourunderstanding. EnjoyingServiceandHavingFun TouristservicecentersintheExpoSiteprovideservicesincludinginformationinquiry查询storageofpersonalbelongingswheelchairandstrollerrentinglostfoundserviceandsearchformissingpersons.WehopeyouhaveagoodtimeattheExpo. Youcancalltheservicehotlineat86﹣10﹣86484017forinquirysuggestionorcomplaint.Thanksforyourattention. 1WhichofthefollowingisallowedtoentertheExpoSite? A.Wheelchairs. B.Dogs. C.Trucks. D.Cars. 2WhichserviceisNOTprovidedbythetouristservicecentersintheExpoSite? A.Strollerrenting. B.Informationinquiry. C.Sellingthesouvenirs. D.Lostfoundservice. 3Whatcanwelearnfromthepassage? A.Visitorscanbuyticketsonline. B.Thenumberofthetouristsisnotlimited C.Whoeverclimbsthestructurewillgetfined. D.VisitorsshouldshowIDcardbeforeentering
草原是绿色生态环境的重要组成部分．图1所示曲线表示某草原生态系统中三个不同种群的生长和繁衍情况已知种C为自养生物．图2表示该生态系统中光合作用积累的有机物被植食性动物利用的过程图中的字母表示所含的能量．下列说法不正确的是
Tobeagoodteacheryouneedsomeofthegiftsofagoodactoryoumustbeableto1theattentionandinterestofyourstudentsyoumustbea2speakerwithagoodstrongpleasingvoicewhichisfullyunderyourcontrolandyoumustbeableto3whatyouareteachinginordertomakeitsmeaningclear. Watchagoodteacherandyouwillseethathedoesnotsitstill4hisclasshestandsthewholetimeheisteachinghewalksaboutusinghis5handsandfingerstohelphiminhisexplanationandhisfacetoexpressfeelings.Listentohimandyouwill6theloudnessthequalityandthemusicalnoteofhisvoicealways7accordingtowhatheis8about.Thefactthatagoodteacherhassomeofthegiftsofagoodactordoesn't9thathewillindeedbeabletoact10onthestageforthereareveryimportant11betweentheteacher'sworkandtheactor's.The12hastospeakwordswhichhehaslearntbyhearthehastorepeatexactlythe13wordseachtimeheplaysacertainpart14hismovementsandthewaysinwhichheuseshisvoiceareusually15beforehand.事先预先Whathehastodoistomakeallthesecarefullylearntwordsandactionsseemnaturalonthestage. Agoodteacher16inquiteadifferentway.Hisstudentstakeanactivepartinhis17theyaskandanswerquestionstheyobeyordersandiftheydon't18somethingtheysaysorry.Theteacherthereforehastosuithisacttotheneedsofhisstudentswhichisinhisclass.Hecan'tlearnhispartbyheartbutmust19itashegoesalong. Ihaveknownmanyteacherswhowerefine20inclassbutunabletotakepartinastage﹣playbecausetheirbrainswouldn'tkeepdisciplinetheycouldnotkeepstrictlytowhatanotherhadwritten. 1A.play B.hold C.give D.know 2A.clear B.slow C.quick D.loud 3A.act B.talk C.say D.report 4A.for B.before C.behind D.arms 5A.tongues B.word C.legs D.arms 6A.hear B.see C.think D.guess 7A.making B.changing C.expressing D.giving 8A.talking B.thinking C.hearing D.saying 9A.tell B.express C.show D.mean 10A.carefully B.badly C.well D.actively 11A.things B.differences C.points D.similarities 12A.actor B.teacher C.audience D.student 13A.different B.same C.above D.following 14A.just B.never C.ever D.even 15A.read B.known C.fixed D.written 16A.talks B.works C.teaches D.thinks 17A.groups B.party C.play D.class 18A.give B.place C.obey D.hear 19A.create B.discover C.teach D.continue 20A.speakers B.watchers C.actors D.listeners
为了防止干旱阻碍小麦的生长可采用不同给水措施以调整小麦的光合效率．确保产量．各组实验处理及结果如图所示请回答下列问题 1据图分析可知在对小麦的各种处理中处理不会导致植株出现“午休”现象其原因可能是． 2施用磷肥可以提高小麦产量是因为确可以参与光合作用过程中物质的构成列出两种物质． 3调查研究发现同一小麦植株的底部叶片呼吸作用强度比顶部叶片弱其内部原因最可能是． 4在小麦苗期至穗期经常发生蚜虫危害．调查蚜虫密度常用法．为防止蚜虫病害可引入蚜虫的选填“捕食者”“竞争者”“寄生者”．
金属镓有“电子工业脊梁”的美誉镓及其化合物应用广泛． 1镓Ga的原子结构示意图为镓元素在周期表中的位置是． 2镓能与沸水剧烈反应生成氢气和氢氧化镓该反应的化学方程式是． 3氮化镓在电和光的转化方面性能突出是迄今理论上光电转化效率最高的材料．资料镓的熔点较低29.8℃沸点很高2403℃． ①传统的氮化镓GaN制备方法是采用GaCl3与NH3在一定条件下反应该反应的化学方程式是． ②当代工业上固态氮化镓GaN的制备方法是利用镓与NH3在1000℃高温下合成同时生成氢气每生成lmolH2时放出10.27kJ热量．该可逆反应的热化学方程式是． ③在密闭容器中充入一定量的Ga与NH3发生上述反应实验测得反应平衡体系中NH3的体积分数与压强P和温度T的关系曲线如图1所示． 图中A点和C点化学平衡常数的关系是 KAKC填“＞”“＝”或“＜”理由是． 4电解法可以提纯粗镓具体原理如图2所示 ①粗镓与电源极相连．填“正”或“负” ②镓在阳极溶解生成的Ga3+与NaOH溶液反应 生成GaO2﹣GaO2﹣在阴极放电的电极反应式是．
某同学探究SO2使品红溶液褪色的过程将SO2通入水中得到pH＝2的溶液A后续操作如下下列说法不正确的是
Everyfestivalhasitsownmeaning.LaborDay.forexamplecelebratesthevalueofhardwork.Thanksgivingisaboutshowingthankstopeoplearoundyou.AndValentines'DayisatimewhenyouexpresslovetoyourlovedonesButsomehowitnowseemsthatallfestivalswejustaboutonething﹣shopping.Andthatcanbeabigproblem. Inawayover﹣consumption过度消费isthemotherofallourenvironmentalproblems.KalleLasnoncetoldCNN.LasnistheorganizerofBuyNothingDayadaysetupinCanadain1992tofightagainstunhealthyspendinghabitsandhasnowbecomeaninternationalevent.It'shelonthedaywhichisknownasBlackFridny﹣afamousshoppingdayintheUSandCanada. Youcanseetheirony讽刺here. EventhoughtheideaofBuyNothingDaywasbroughtup26yearsagoweseemtoneeditnowmorethaneverIt'sjustasLasnsaidallthedifferentkindsofpollutioninourlivestodaybadairqualitythereductionofforestareaendangeredanimalspeciesandplasticbagsfoundintheocean﹣seemtobethesamecauseover﹣consumption. ThelatestexampleistheSingles'DayshoppingcrazeofNov1l.whichsawanewsalesrecordButasNieLiacampaigneratGreenpeacetoldReuters.Record﹣settingover﹣consumptionmeansrecord﹣settingwaste.AnditwasreportedthatlastyeartheSingles'Daypackagesleftmorethan160000tonsofwasteincludingplasticandcardboard.TheCollinsdictionaryhasalsojustnamedsingle﹣useitsWordoftheYearpointingouttheproblemthatthere'retoomanythingswetowoutafteronlyusingthemonce. SoBuyNothingDaymightonlybehereforonedayayearbutit'snotjusttoremindustotheabreakfromshoppingonthatdaybuttochangeourlifestylecompletelyfocusingonfunwithpeoplewecareaboutratherthanwastingmoneyonuselessthings. 1What'stheauthorspurposeofwritingthefirstparagraph? A.Toexpressthepeople'sloveforallfestivals. B.Totalkaboutthemeaningofthefestivals. C.Toappreciatethevalueofthefestivals. D.Tobringoutthetopicofthepassage. 2WhydidKalleLasnorganizeBuyNothingDay? A.Tohelppeoplesavemoney. B.Tocutthecostfordailylife. C.Topreventover﹣consumption. D.Tosetupanewsalesrecord. 3What'sNieLi'sattitudetowardstheshoppingcraze? A.Opposed反对的. B.Supportive. C.Unknown. D.Neutral中立的. 4Whatcanbeasuitabletitleforthepassage? A.CreatingaNewLifestyle. B.BuyNothingDay. C.FestivalsAroundtheWorld. D.AChangeinPeople'sLife.
此题要求改正所给短文中的错误.如有错误则按下列情况改正 删除此行多一个词把多余的词用斜线\划掉 增加此行缺一个词在缺词处加一个漏字符号Λ 修改此行错一个词在错的词下划一横线并在该行下边写出改正后的词. 注意1.每处错误及其修改均仅限一词 2.只允许修改10处多改者从11处起不计分 MyinteresthadbeeninbooksinsteadofinfoodsinceIwenttohighschool.InthepastIwasrealinterestedinallkindsoffood.InsummerIlikedtobuyicecreamandcolddrinksandinwinterIliketobuysweetsandsomeanotherfood.WheneverIwentforawalkwithmyparentIwouldaskthembuymesomething.HoweverafterIwenttohighschoolIfoundIwasputtingonmyweight.SoIgaveupthehabitofeatingandbeginningtospendmoneyinallkindsofbooksandmyparentsarealwayscomplainingthatIamamoneyspender!
Goodtimemanagementallowsyoutocompletemoreinashorterperiodoftimelowerstheamountofpressure压力andleadstocareersuccess.Hereissomeadviceforyou. Makeaplan Listallthetasksthatareimportant1Nexthighlightthetasksonyourlisttoshowtheirurgency紧急.Thenfocusonlyononeitematatimeandenjoythepleasureofcrossingoffthecompleteditems. Stayawayfromdistractions分散注意力的事 Thoughthee﹣mailandsocialmediaareimportanttoyoureverydaycommunicationtheyrequiremuchofyourattention.2 Learntosayno 3.Althoughsayingnotosomeoneolderthanyouismuchmoredifficultit'simportanttobehonestandtolookafteryourhealth.Sharingyourlistwithhim/herwillhelptorefusetheadditionalwork. Giveyourselfabreak Don'tbehardonyourself.Youwillactuallyperformbetterifyoutakebreak4.Theworldwillnotfalldownifyouputoffopeningsomee﹣mails. Improveyourplan 5Remakeyourplanandtakeoffthedistractingtaskstofocusonasolution.Dealingwithproblemsinthefaceoftimepressurewillbeoneofyourmostvaluableexperiencesinyourfutureemployment. A.Trynottodomoreworkifpossible B.Takingbreaksisgoodforyourbrains C.Behonestwithyourselfaswellasothers D.Avoidlookingatyourworke﹣mailswhennotworking E.Writethemdownanddon'tjustrelyonyourmemory F.Reviewyourworkplanregularlywhenthingsarenotgoingwell G.Shutthemoffasyouworkonataskrequiringyourfullattention
IhaveafriendnamedMontywhoownsahorseranch牧场.Onedayhetoldmeastory. Therewasayoungmanwhowasthesonofahorse1.Hisfatherhadtogofromtheirhousetoranchtraininghorses. Onedaytheboy*steacheraskedthestudentsto2apaperaboutwhattheywantedtobeanddowhentheygrewup.Thatnighttheboyfinishedaseven﹣pagepaper3hisdreamofowningahorseranch.Heevendrewa4ofa4000﹣square﹣foothouse.Buthe5gotaredFonthefirstpage.Theboywiththedreamaskedhisteacher‘WhydidIreceiveanF?'Theteachersaid.Thisisan6dreamforayoungboylikeyou.Owningahorseranchneedsalotof7.There'snowayyoucouldeverdoit.'Thentheteacher8‘IfyourewritethispaperwithamorerealisticdreamIwillgiveyouamorerealistic9.' Theboywenthomeandaskedhisfatherwhatheshoulddo.Hisfathersaid‘Looksonyouhavetomakeyourown10.' Finallytheboy11thesamepapermakingnochangeatall.Hesaid‘You12keeptheFandI'llkeepmydream.' MontythenlookedatmeandsaidItellyouthisstory13youaresittinginray4000﹣square﹣foothouseinthemiddleofmy200﹣acrehorseranch.HecontinuedTwosummersagothe14teacherbrought30kidstocampoutonrayranchforaweek.Whentheteacherwasleavinghesaid‘LookMontyIcantellyouthisnow.WhenIwasyourteacherIwasadream15.DuringthoseyearsIstolealotofkids'dreams.16youhadnotgivenyoursup. Don'tletanyonestealyourdream.17yourheartnomatterwhat.Youcanachieve18youwantinlifeifyouhavethe19todreamittheintelligencetomakearealisticplanandthe20toseethatplanthroughtotheend. 1A.keeper B.farmer C.driver D.trainer 2A.copy B.write C.check D.recite 3A.describing B.spreading C.realizing D.predicting 4A.conclusion B.line C.circle D.picture 5A.also B.just C.really D.still 6A.unrealistic B.strange C.funny D.common 7A.knowledge B.practice C.money D.creation 8A.requested B.warned C.repeated D.added 9A.opinion B.grade C.impression D.suggestion 10A.decision B.promise C.standard D.living 11A.setdown B.gaveout C.handedin D.toreup 12A.must B.can C.should D.dare 13A.when B.although C.until D.because 14A.particular B.devoted C.experienced D.same 15A.stealer B.maker C.holder D.leader 16A.Hopefully B.Fortunately C.Surprisingly D.Sadly 17A.Follow B.Search C.Take D.Feel 18A.nothing B.however C.anything D.wherever 19A.energy B.patience C.wisdom D.courage 20A.lime B.will C.skill D.chance
三效催化剂是最为常见的汽车尾气催化剂其催化剂表面物质转化的关系如图所示下列说法正确的是
在群体中位于某对同源染色体同一位置上的两个以上决定同一性状的基因称为复等位基因．已知紫色企鹅的常染色体上也有一系列决定羽毛颜色的复等位基因Ggchgbg显性效应为G＞gch＞gb＞g．该基因系列在决定羽毛颜色时表现型与基因型的关系如表 请回答下列问题 1以上复等位基因的出现体现了基因突变的特点企鹅羽毛颜色的基因型共有种． 2基因型Gg的个体是深紫色的研究发现由于臭氧层“空洞”近年来在紫外线的辐射增强的地区某些基因型Gg个体的背部也会长出白色羽毛产生这种变异的原因可能是某些细胞在有丝分裂的间期发生了基因中序列的改变也可能是染色体结构发生的变异． 3现有一只浅紫色雄企鹅和多只其他各色的雌企鹅如何利用杂交方法在一个繁殖季节里检侧出该雄企鹅的基因型写出实验思路和预期实验结果即可．
Cl2是一种重要的工业原料液氯储存区贴有的说明卡如下 下列解释事实的方程式不正确的是
假如你是李华请按如下提示给酷爱中国书法的外教Mr.Smith写一封信邀请对方参加你校举办的国庆书法展NationalDaycalligraphyexhibition. 1.展出时间2017年10月1日﹣5日 2.展出地点学生活动中心5楼 3.展出作品300多幅师生作品 注意1.词数100词左右 2.可以适当增加细节以使行文连贯.
Althoughmostparentsdon'tlikedoingitafteralongandexhaustingworkdayreadingbedtimestoriesdoesmakeapositiveinfluenceonyourchild'semotionalandmentalhealth.1 Ithelpstodevelopchildren'simagination. Readingbedtimestoriescandevelopyourchildren'sabilitytoformpicturesorideasintheirmind.Ahealthyimaginationmakestheirmindsworkwellandteachesthemtothinkquicklyyeteffectively.2 Itimproveschildren'slanguage. Readingalsoimprovesyourchildren'slanguage.3They'llmostlikelyusethosewordsinthestoriesyoureadrightaftertheyhearthem.Listeningtomanystorieshelpskidstoexpresstheiropinionsbetter. 4 Readingbooksmakespeoplemorelearned.Whenchildrenhearthestoriesyoutelltheylearngrammarandvocabularyforexample.Ithelpsthembesuccessfulinschoolastheyalreadyknowalotfromyourstories.What'smoreeverystoryhasitsmoralaspectandtellsthemwhat'sgoodandwhat'sbad. Thesereasonsleavenochancesofdoubtingwhethertoreadbedtimestoriestoyourchildrenornot.5TheywillthankyouinfutureIpromise. A.Itfosterschildren'saffectionforreading. B.Itmakeschildrenknowledgeable. C.Takealookatthebestbenefitsofitandyou'llneverbelazytodothat. D.Sohowevertiredyouarefindtimetoreadbedtimestoriestoyourchildren. E.Bedtimestoriescreatejustunforgettablemoments. F.Theyremembermostwordsyousayandenlargetheirvocabulary. G.They'llbesuccessfulinmanyaspectsthankstoawonderfulimagination.
SO2广泛用于医药硫酸工业等领域回收废气中的SO2可用如下方法． 1方法Ⅰ的过程如下． ①制备Al2SO4xOHy 向Al2SO43溶液中加入CaO粉末调pH至3.6．CaO的作用之一是促进水解填离子符号下同二是沉淀一部分． ②吸收Al2SO4xOHy吸收SO2后的产物是写化学式． ③解吸加热②中产物产生SO2Al2SO4xOHy再生． 2方法Ⅱ中在Fe2+催化下SO2O2和H2O生成H2SO4的化学方程式是． 3方法Ⅱ中Fe2+的催化过程可表示如下 ⅰ2Fe2++O2+SO2＝2Fe3++SO42﹣ ⅱ…… ①写出ⅱ的离子方程式． ②下列实验方案可证实上述催化过程．将实验方案补充完整． a．向FeCl2溶液滴入KSCN无变化 b．向FeCl2溶液通入少量SO2滴入KSCN颜色变红． c．取b中溶液． 4方法Ⅱ中催化氧化后采用滴定法测定废气中残留SO2的含量．将VL已换算为标准状况废气中的SO2用1%的H2O2完全吸收吸收液用如图所示装置滴定 共消耗amLcmol/LNaOH标准液． ①H2O2氧化SO2的化学方程式． ②废气中残留SO2的体积分数为．
InModemsocietythereisagreatdealofargumentaboutcompetition.Somevalueithighlybelievingthatitisresponsibleforsocialprogressandprosperityotherssaythatcompetitionisbadthatitsetsonepersonagainstanotherthatitleadstounfriendlyrelationshipbetweenpeople. Ihavetaughtmanychildrenwhoheldthebeliefthattheirself﹣worthreliedonhowwelltheyperformedattennisandotherskills.Forthemplayingwellandwinningareoftenlife﹣and﹣deathaffaire.Intheirsingle﹣mindedpursuit追求ofsuccessthedevelopmentofmanyotherhumanqualitiesissadlyforgotten. Howeverwhilesomeseemtobelostinthedesiretosucceedotherstakeanoppositeattitude.Inaculturewhichvaluesonlythewinnerandpaysnoattentiontotheordinaryplayerstheystronglyblamecompetition.Amongthemostvocalareyoungsterswhohavesufferedundercompetitivepressuresfromtheirparentsorsociety.TeachingtheseyoungpeopleIoftenobserveinthemadesiretofail.Theyseemtoseekfailurebynottryingtowinorachievesuccess.BynottryingtheyalwayshaveanexcuseImayhavelostbutitdoesn'tmatterbecauseIreallydidn'ttry.Whatisnotusuallyadmittedbythemselvesisthebeliefthatiftheyhadreallytriedandlostthatwoundmeanalot.Suchalosswouldbeameasureoftheirworth.Clearlythisbeliefisthesameasthatofthetruecompetitorswhotrytoprovethemselves.Botharebasedonthemistakenbeliefthatone'sself﹣respectreliesonhowwelloneperformsincomparisonwithothers.Botharcafraidofnotbeingvalued.Onlyasthisbasicandoftentroublesomefearbeginstodissolve化解canwediscoveranewmeaningincompetition. 1Whatdoesthispassagemainlytalkabout? A.Competitionhelpstosetupone'sself﹣respect. B.Peopleholddifferentopinionsoncompetition. C.Failuresarenecessaryexperienceincompetition. D.Competitionisharmfultoone'sdevelopment. 2Whydosomepeoplefavorcompetitionaccordingtothepassage? A.Itpushessocietyforward. B.Itbuildsupasenseofduty. C.Itencouragesindividualefforts. D.Itimprovespersonalabilities. 3Whatisthesimilarbeliefofthetruecompetitorsandthosewithadesiretofail? A.One'ssuccessincompetitioncallsforgreatefforts. B.One'sachievementisdeterminedbyhisparticularskills. C.One'ssuccessrelieslargelyonhisfirmbeliefofwinning. D.One'sworthliesinhisperformancecomparedwithothers. 4Whichpointofviewmaytheauthoragreewith? A.Competition﹣damagesfriendshipamongpeople. B.Performanceincompetitiondeterminesone'svalue. C.Fearoffailureshouldberemovedincompetition. D.Winningshouldbeamaileroflifeanddeath.
现代生物工程技术推动了免疫学畜牧业和生态工程的发展回答下列相关问题 1某高校研发的幽门螺杆菌疫苗为基因工程疫苗实验证明一定时间内间隔口服该疫苗3次效果更好其主要原因是体内产生的细胞数量增多该类细胞在病原体再次进入人体后会迅速增殖分化产生更多的浆细胞进而产生更多的导致获得的免疫预防作用更强持续时间更久． 2对大面积烧伤病人利用自身健康皮肤细胞借助技术可获取大量用于移植的皮肤培养细胞时的条件为的环境合适的营养适宜的温度通入含有95%空气和5%CO2混合气体．CO2的作用是． 3用细胞核移植技术繁育良种牛的过程需要进行胚胎移植移植前需要对供体和受体牛进行处理受体对外来胚胎基本不发生为胚胎在受体内的存活提供了可能． 4依据生态工程的原理黄河三角洲自然保护区的建立需考虑提高农民经济收入使保护环境和经济发展相互协调．
Afterayearatsea16﹣year﹣oldLauraDekkercanfinallysayMissionaccomplished!Lastmonthshefinishedadaringtriparoundtheworldaboardher38﹣footboatGuppy.DekkerwhoisfromtheNetherlandstraveledmorethan30000milesallbyherself.Sheistheyoungestpersonevertosailaroundtheglobealone. Dekkerhadwantedtolakeonthischallengewhenshewasevenyounger.Shefirsttriedtosetsailattheageof13butacourtintheNetherlandsstoppedher.Theysaidthatshewastooyoungtomakesuchariskytripbyherself.ButDekkerinsistedshehadthenavigationskillsandpatienceofanadultsailor. ShefinallytookoffonJanuary202011.DuringhertripDekkerbattledlonelinessstormsandworriesaboutpirates.Butshealsogottosurfscubadiveandstartedanewhobbyplayingtheflute.AlthoughDekkerdidn'tspendallofhertimeatsea﹣shestoppedatportsalongtheway﹣shedidspendher16lhbirthdayontheopenocean.Tocelebrateshealedoughnutsforbreakfast. ButDekkerdidn'tsailintotherecordbooks.GuinnessWorldRecordsandtheWorldSailingSpeedRecordCouncilnolongerrecognizerecordsforyoungestsailors.Theydroppedthecategoryin2009todiscouragechildrenfromattemptingsuchdangerousfeats壮举Butthatdidn'tstopDekkerwhowasbornonayachtduringaseven﹣yearworldvoyageundertakenbyherparents. Dekkerdoesn'tmindthatshewon'tholdanofficialrecord.Shesaysitwasapersonalgoalandsheishappysheachievedit. IamnotdisappointedatallthatGuinnessWorldRecordwon'trecognizemyattempt.Dekkerwroteonherwebsite.Ididnotstartonmytriptoachieveanyrecord…Ididitjustformyself. 1Dekkerwasn'tallowedtosailattheageof13because. A.peoplewereconcernedabouthersafety B.shedidn'tlearnanysailingskillswell C.shehadtocontinueherstudyatschool D.shedidn'thaveenoughpatienceforlongtrips 2WhatdoestheunderlinedwordaccomplishedinParagraph1mean? A.Failed. B.Completed. C.Continued. D.Started. 3In2009recordsforyoungestsailorswerecanceledinorderto. A.setahighersailingstandardforteensailors B.stopchildrenenteringGuinnessWorldRecords C.encourageparentstosailwiththeirchildren D.preventchildrenmakingdangerousattempts 4Whatcouldbethebesttitleforthispassage? A.ANewGuinnessWorldRecordinSailing B.ANewSailingStandardforTeenSailors C.ATeenGirlSailingAloneAroundtheWorld D.TheYoungestSailorinGuinnessWorldRecords
Checkoutthesegreatopportunitiesforfamilyfun. Boo﹣CampJack﹣O'﹣LanterLoreandPumpkinCarving～HalfMoonBay JoinusatBob'sPumpkinFarminHalfMoonBaywherestudentsofallageswilllearnaboutthehistoryofjack﹣o'﹣lantersbeforepickingtheirownpumpkinlearningfuncarvingtechniquesandcarvingtheirownjack﹣o'﹣lanternforHalloween. SaturdayNightAstronomyShowsatFujitsuPlanetarium天文馆～Cupertino LearnaboutspaceandscienceonSaturdayeveningsattheFujistuPlanetariumontheDeAnzaCollegecampus.FamilyshowsincludeSecretoftheCardboardRocketTheLittleStarThatCouldMagicTreeHouseSpaceMissionWeAreStarsThisIsOurSky!andExtremePlanets. HolidayBasketballCamp～MountainView LearnvaluableskillsfromMVHSbasketballcoachesinthishalf﹣daycamp.Shootingballhandlinganddefensewillbeamongtheskillscoveredinahigh﹣energyfast﹣pacedenvironment.Thisisagreatopportunitytohavefunstayactiveandworkonyourgame.Opentoboys&girlsingrades3﹣8thecampwilltakeplace9am﹣12intheMountainViewHighSchool. AGoat'sLifeatHarleyFarms～Pescadero JoinHomeroomEducationforadayoffamilyfunatHarleyFarmsinPescadero.Familieswillgetupclosewithdairygoatsinoneofourmostpopularhands﹣onworkshopsforstudentsofallages.PullonyourbootsandheadouttoHarley Farmstomeetthegoatsandlearnallabouttheirbiologyandecology. 1Wherecanyougoifyou'reinterestedinstars? A.HalfMoonBay. B.HarleyFarms. C.ThefuitsuPlaetriunm. D.MountainViewHighSchool. 2WhatdoesHomeroomEducationoffertofamilies? A.Achanceofpersonalparticipation. B.Aglanceatraisingdairygoats. C.Anexperiencewithbasketballstars. D.Funofcarvingtheirownpumpkins. 3Whattypeofwritingisthispassage? A.Anofficialreport. B.Anexhibitionguide. C.Anactivityreview. D.Anactivityintroduction.
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. Haveyoueverhadaheadacheduringatest?Haveyoueverbeentooworriedaboutsomethingthatyouhaveaheadacheorevencan'tsleepatnight?Ifsothenyouknowthatstressis. Notallstressisbadforyou.Somekindsofstresscanhelpyougetthingsdobetterlikewhenyouarerunningtowardsthefinishinglineorwhenyouarebeingaskedtogiveaspeechtoyourclass.Stresssometimescanhelppushyoutomakefullpreparationforatest.Howevertoomuchstresscanresultinangerdepressionandotherrelatedproblemswhichweneedtotakeserious. Therearemanythingsinourlifewhatmightcausestress﹣havingtoomuchhomeworktakingadifficulttestandhavingeconomicproblems. It'simpossibletoliveinalifecompletelyfreeofstresssoyoushouldlearntodealwithstress.Thebestwayreducestressistohaveabalancelife.Ifyougetenoughsleepeatproperlytakemoreexerciseandhaveenoughfantimeyou'llprobablyfeellessstressed.
某学习小组探究铁和硝酸银溶液的反应实验过程如下 1根据上述实验现象甲同学认为有Fe2+生成铁和硝酸银溶液的反应的离子方程式是． 2乙同学认为实验中可能生成Fe3+设计并完成如下实验 查阅资料Ag+与SCN﹣生成白色沉淀AgSCN乙同学判断有Fe3+理由是． 3乙同学继续探究红色褪去的原因设计并完成如下实验 ①实验IV的目的是 ②用平衡移动原理解释实验V中溶液红色褪去的原因． 4丙认为溶液中Fe3+是Fe2+被Ag+氧化所致．按如图连接装置并进行实验一段时间后取出左侧烧杯溶液加入KSCN溶液溶液变红 ①其中X溶液是 ②由实验得出Ag+和Fe2+反应的离子方程式是 ③丙同学的实验设计及结论是否合理请说明理由．
It'sdifficulttothinkofabetter﹣knownworkofartthanLeonardodaVinci'sMonaLisa.Michelangelo'sTheCreationofAdamontheceilingoftheSistineChapelcomesclosebutthat'sadetailofahugeworknotaworkofartonitsown.Imagesbymany20th﹣centuryartistslikeSpain'sPabloPicassoandtheUS'AndyWarholarealsoinstantlyrecognizable.HowevernootherpaintingisnearlyasfamousastheportraitinoilsofafashionableyoungladyofFlorenceItaly. Thispaintingisn'tjustfamousbecausetheimageisnowabletobereproducedoverandoveragain.Itsfamehasatleastsomethingtodowiththefactthatit'safinepieceofwork.DaVinciwasaleaderintherevolutioninpaintingintheRenaissanceperiod.TheRenaissancewasmorecenteredaroundhumansthanperviousEuropeanculturewasandtheMonaLisaisafineexampleofRenaissancehumanism.Theworkisaboutaperson.ThewomandaVinicpainteddoesnotrepresentareligiousideabutisanindividualwhomonefeelsthatonecouldtalktoandnow. Andthequestionofwhothewomanishasalwaysinterestedthepublic.Theearliestanswerfrom＝1517isthatshewasjustacertainFlorentineladybutin1550famoushistorianandpainterGiorgioVasarisaidshewasMonaLisathewifeofsilkmerchantFrancescodelGioeondo.OverthecenturiesanumberofotherwomenhavebeenputforthasthemodelincludingasuggestionthatdaVinciusedhimselflookinginamirroraswellastheideasthatshewaspaintedfromdaVinci'simagination.Theworkinvitestheviewer/readertodiscoverforhimselforherselfperhapsinventwhatitmeans. LeonardokeptithimselfandtookitwithhimtoMilanRomeandFranceanduseditasacallingcardsaidLarryFeinbergfromtheArtInstituteofChicago﹣sortofanadvertisementHeylookwhatIpainted!Icanpaintforyoutoo! 1Whydoestheauthorrefertothreeotherartists? A.ToshowtheMonaLisaisveryfamous. B.TocomparedaVinciwithotherpainter C.Tointroducedifferentgreatpainters. D.ToprovenootherpainterisequaltodaVinci. 2WhatisstressedbymentioningtheRenaisance? A.PaintingskillsoftheMonaLisa. B.DifferentattitudestotheMonaLisa. C.TheeconomicvalueoftheMonaLisa. D.Thetradition﹣breakingideaoftheMonaLisa. 3WhathelpedtheMonaLisa'spopularityaccordingtoParagraph3? A.Itsbeingpaintedfromimagination. B.Itsbeingopentointerpretation. C.DaVinci'susinghimselfasthemodel D.Manywomen'sclaimingtobethemodel. 4WhatdoesFeinbergsayaboutdaVinci? A.Hewaseagertopaintforpeople. B.HefellinlovewiththeMonaLisa. C.HemadeafortunethrouglhtheonaTis. D.HeusedtheMonaLisatoearnareputation.
日前中科院生物化学与细胞生物学陈剑峰研究组最新研究成果对发烧在机体清除病原体感染中的主要作用及其机制做出了全新阐述．研究成果发表在国际免疫学权威期刊免疫上．该发现让人们对发热的作用和退热药的使用有了全新的认识．下列有关说法错误的是
Anumbrellaisafoldingclothcoversupportedbywoodenormetalribs伞骨.Thewordumbrella1typicalreferstoagreatinventionofChinausedfor2protectfromrain. TheChinesecharacterforumbrellaisrelatedtotheshapeofarealone3resemblethemodernumbrellaindesign.Someinvestigatorshavesupposedthatitsinvention4createbytyinglargeleavestobranchy﹣likeribs.Othersadvocatethattheideaprobablycamefromthetent5remainsunchangedinformtothepresentday. 6useoftheumbrellawasoftenlinkedtohigh﹣rankinginancientChina.7atleastoneoccasiontwenty﹣fourumbrellaswerecarriedbeforetheEmperor8hewentouthunting.Theumbrella9serveinthiscaseasadefenseagainstrainratherthansun.TheChinesedesignwaslaterbroughttoJapanviaKoreaandalsointroducedtoPersiaandtheWesternworldviatheSilkRoad.TheChineseandJapanesetraditionalumbrellaoften10useneartemplesremainssimilartotheoriginalancientChinesedesign.
药物Q适用于治疗高血压心绞痛可由有机物P和L制备． 1有机物P的合成路线如下． 已知RR′R″代表烃基或氢 ①A的分子式为C3H8O其所含的官能团是． ②B的核磁共振氢谱只有一个吸收峰其结构简式是． ③由D生成有机物P的反应类型是． 2有机物L的合成路线如下． 已知 ①生成E的化学方程式是． ②与有机物M发生加成反应M的结构简式为． ③F含羧基化合物N是． ④生成有机物L的化学方程式是． 3以为起始原料合成聚合物甲的路线如下 写出聚合物甲的结构简式．
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