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氢氧化钠和氢氧化钙是两种常见的碱．李红同学将两种碱的溶液分别装入试管A、B中，并进行了如图所示的实验．实验中，李红同学向两支试管吹气，A中有白色沉淀生成，发生反应的化学方程式为 ．B中无现象，此...
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下列两种物质的溶液混合后能发生化学反应且溶液的总质量前后不会改变的是
氢氧化钠溶液和稀盐酸
碳酸钠溶液和稀盐酸
氯化钠溶液和稀硫酸
碳酸钠溶液和氢氧化钙溶液
对知识的归纳和总结是学好科学的重要方法在学习了碱的性质后小红同学总结了氢氧化钙的四条化学性质如图即氢
氢氧化钠．氢氧化钙都属于碱除这两种碱外常用的碱还有等．
用醇溶液调pH法除去鞣质时所用的碱是
20％氢氧化钠
40％氢氧化钠
20％氢氧化钙
40％氢氧化钙
40％氢氧化钾
氢氧化钠和氢氧化钙是实验室常见的碱请回答1氢氧化钠和氢氧化钙具有相似的化学性质原因是在它们的溶液中阴
氢氧化钠和氢氧化钙都能与二氧化碳发生反应氢氧化钙与二氧化碳反应的化学反应方程式为现有两份等质量的二
对知识的归纳和总结是学好科学的重要方法在学习了碱的性质后小红同学总结了氢氧化钙的四条化学性质如图即氢
混凝土中碱骨料反应中所指的碱是
氢氧化钠
氢氧化钙
氧化钠、氧化钾
氧化钙
现有氢氧化钠和氢氧化钙的固体混合物7.7g与100g7.3%的稀盐酸恰好完全反应则所得溶液中两种溶质
11.1g
11.4g
11.7g
17.25g
向甲醇精馏系统所加的碱液是
氢氧化钠
氢氧化钾
氨水
氢氧化钙
氢氧化钠氢氧化钙等碱溶液为什么具有一些相似的性质如何把氢氧化钠溶液和氢氧化钙溶液用化学方法鉴别出来
对知识的归纳和总结是学好化学的重要方法在学习了碱的性质后小红同学总结了氢氧化钙的四条化学性质如图即氢
氢氧化钠和氢氧化钙是两种重要的碱它们既有共性也有个性1它们的水溶液的pH都__7填大于等于或小于都能
不用其他试剂可以鉴别石蕊盐酸氢氧化钙氢氧化钠碳酸钠五种溶液第二个被鉴别出来的物质是
盐酸
氢氧化钙
氢氧化钠
碳酸钠
氢氧化钠氢氧化钙都是实验室常用的碱要鉴别氢氧化钠稀溶液和饱和氢氧化钙溶液下列方法不能够达到目的的是
分别滴加碳酸钠溶液
分别通入二氧化碳
分别滴加稀盐酸
分别加热原溶液至80℃
请回答与氢氧化钠和氢氧化钙有关的问题．鉴别两种碱溶液可选用的盐溶液为．
碱的化学性质是写出有关的化学方程式1碱溶液能与酸碱指示剂反应使试液变蓝使试液变红.2碱+非金属氧化物
氢氧化钠氢氧化钙都是实验室常用的碱要鉴别氢氧化钠稀溶液和饱和氢氧化钙溶液下列方法不能够达到目的的是
分别滴加碳酸钠溶液
分别通入二氧化碳
分别滴加稀盐酸
分别加热原溶液至80℃
氢氧化钙和氢氧化钠是常见的两种碱检验二氧化碳时常用氢氧化钙溶液吸收二氧化碳时常用氢氧化钠溶液请解释其
氢氧化钙和氢氧化钠是常见的碱检验二氧化碳是常用氢氧化钙溶液吸收二氧化碳时用氢氧化钠溶液请解释原因．
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8分In1997IfoundmyselfinasituationIneverthoughtI'dbeinaloneandbeggingformoneyinNewYork.MyfatherhadbeenseparatedfromourfamilyandmymotherhadrecentlydiedfromcomplicationsrelatedtoAIDS.WhatIremembermostaboutsuchnightsislyingonthecoldmarblefloorandusingmybackpackforapillow.EventhoughIhadlostmyfamilyImadechoiceseverysingledaytoturnmylifearound.Therewasthehaven避风港forhomelessteenagerscalledtheDooranon﹣profitorganizationthatprovidedmewithguidancemedicalcareandfoodallofwhichkeptmegoingwhileIcompletedmyhomeworkintrainstationsandunderhallwaylights.PerhapsthemostsurprisinghelpthoughIdidnotseekout;itfoundme.TheNewYorkTimestoldmystory.IntheweeksthatfolloweddozensofstrangersreachedouttomefromallacrosstheUnitedStates.AtmyhighschoolIbeganreceivinghandwrittenlettersofencouragement.Strangersshowedupbearingclothesbooksandevenhugs.SincethearticlementionedIwasapplyingtoHarvardonewomanknittedablanketforme.Sheattachedthisnotetotheboxitwaspostedin'Itgetscoldinthosedorms.Mayyouwarmyourselfknowingthatpeoplecareaboutyou'.Withthehelpofthesepeoplemylifetodaybearsnoresemblanceatalltomylifethen.IgraduatednotonlyfromhighschoolbutalsofromHarvardUniversity.Beforethesepeople﹣someofthemnameless﹣Ijustdidn'trealizehowgoodpeoplecouldbe.ButnowIdoandIcansaythatthepeoplewhohelpedmehaveforeverchangedme.TheyarethereasonbehindmydecisiontojointheboardattheDoorsothatIcanbepartofasmallteamofpeopleopeningahighschoolforhomelessteenagers.TheyarethereasonIdedicatemylifetoopeningpathwaysforothers.AndtheyarethereasonItravelaroundtheworldhelpingpeopletransformtheirownlives.1Accordingtothepassagetheauthor.A.triedtochangeherlifeB.oftensleptmfriends'homesC.feltlonelybecauseofherillnessD.feltquitedesperateforherfather2WhatcanwelearnabouttheDoor?A.Itisanorganizationhelpinghomelessteenagers.B.Itisanorganizationseekingprofits.C.Itprovidesentertainmentforchildren.D.Itreportsthestoriesaboutthehomeless.3Whichofthefollowingisthecorrectordertodescribetheauthor'slife?a.Thenewspaperreportedherstory.b.ShegraduatedfromHarvardUniversity.c.Shesleptonthecoldflooratnight.d.ShejoinedthecommitteeattheDoor.e.Hermotherdiedfromtheillness.A.d→e→c→a→bB.e→c→d→a→bC.e→c→a→b→dD.b→c→d→e→a4Whatcanwelearnfromthelastparagraph?A.Patienceisavirtue.B.Lovecanbepassedon.C.Timewaitsfornoman.D.Honestyleadstosuccess.
1分Heworkshardandhealsohasasenseof责任
6分Teambuildinggamescanbefunforteenagers.Theycanalsobetoolsforstrengtheningthegroup.Therearemanylevelsofteambuildingexercises.Let'slookatsomeactivitiesthatcanhelpyoubuildastrongerteam.PasstheClapPasstheClapworkswellasabeginningactivitytohelpyourgroupgettoknoweachother.Havetheparticipantsstandinacircle.Onepersonstartstheclapandthenturnstofacethepersonnexttohim.Astheyareabouttomakeeyecontacttheyclaptogether.Thatnextpersonnowhastheclapandhehastopassiton.Continuetopasstheclaparoundthecircle.Blindfolded蒙住眼睛的BirthdayBlindfoldedBirthdayworkswellafterpeoplehavebecomealittlemorefamiliarwitheachother.Everyoneputsonablindfold.Thenwithouttalkingtheyhavetolineupinorderofbirthdays.TwoTruthsandaLieTwotruthsandaLiecanbeplayedanytimeinthegroup'soperations.Havetheparticipantssitinacircle.Eachpersonissupposedtotelltwotruthsandalieaboutthemselves.Thegrouphastoguesswhichisthelie.HumanKnotHumanKnotisanactivitybestplayedafteryourgrouphasgottenquitefamiliarwitheachotherbecausetherecanbealotoftouchinggoingon.Everyonegathersinacircle.Theyputtheirrighthandsinthemiddleofthecircle.Theygrabsomeoneelse'shand.Thenthelefthandsgointhemiddleandtheygrabsomeoneelse'shand.Thegroupisnowknottedup.TheobjectofHumanKnotistountiethegroupwithoutlettinggoofanyhands.1PasstheClapismosthelpfulfor.A.startingrelationshipsB.rebuildingrelationshipsC.welcomingclosefriendsD.celebratingsomeevents2WhenplayingHumanKnot.A.theparticipantsshouldn'tseeeachotherB.everyoneshouldgrabtwopeople'shandsC.everyoneshouldtelltheirbirthdaytoothersD.theparticipantsshouldn'thaveanybodycontact3Whichgameissuitableforbothstrangersandfamiliars?A.PasstheClap.B.BlindfoldedBirthday.C.TwoTruthsandaLieD.HumanKnot
1分中国倡导的一带一路旨在鼓励更多的国家相互合作. China'sBeltandRoadInitiativeaimstoencouragemorecountriestowitheachother.
8分Honestycomesinmanyforms.Firstthere'sself﹣honesty.Iswhatpeopleseetherealarticleordoyouappearthroughsmokeandmirrors?IfindthatifItrytobesomethingI'mnot.IfeelunsureofmyselfandtakeoutapartfrommyPBApersonalbankaccount.IlovehowsingerJudyGarlandputit.'Alwaysbeafirst﹣classversion版本ofyourselfinsteadofasecond﹣classversionofsomebodyelse.'Thenthere'shonestyinouractions.Areyouhonestatschoolwithyourparentsandwithyourboss?Ifyou'veeverbeendishonestIthinkweallhavetrybeinghonestandnoticehowwholeitmakesyoufeel.Rememberyoucan'tdowrongandfeelright.ThisstorybyJeffisagoodexampleofthatInmysecondyearofstudytherewerethreekidsinmymathclasswhodidn'tdowell.Iwasreallygoodatit.IwouldchargethemthreedollarsforeachtestthatIhelpedthempass.I'dwriteonalittlepieceofpaperalltherightanswersandhandthemoff.AtfirstIfeltlikeIwasmakingmoneykindofanicejob.Iwasn'tthinkingabouthowitcouldhurtallofus.AfterawhileIrealizedIshouldn'tdothatanymorebecauseIwasn'treallyhelpingthem.Theyweren'tlearninganythinganditwouldonlygetharderdowntheroad.Cheatingcertainlywasn'thelpingme.Ittakescouragetobehonestwhenpeopleallaroundyouaregettingawaywithcheatingontestslyingtotheirparentsandstealingatwork.Butremembereveryactofhonestyisadeposit储蓄intoyourPBAandwillbuildstrength.1Theunderlinedpart'appearthroughsmokeandmirrors'inthefirstparagraphmeans''.A.tobehonestB.tobeunrealC.tobecomeclearD.tocomefromanimaginedworld2WhichofthefollowingcanbestexplainJudyGarland'swords?A.Beyourtrueselfratherthanfollowothers.B.Don'tcopyothersoryoucan'tbethefirstclass.C.Makeeffortstobethefirstinsteadofthesecond.D.Don'tlearnfromothersunlessthey'reexcellent.3WhatdoestheauthorexpecttoshowbyJeff'sstory?A.Honestycanbeofgreathelp.B.Abadthingcanbeturnedintoagoodone.C.Helpingotherscheatcandogoodtonobody.D.Oneshouldrealizethewronginhisbaddeeds.4Inthelastparagraphtheauthormainlywantstoexpress.A.onemustbebravetobehonestB.it'sdifficulttobehonestwhenothersarenotC.oneshouldbehonestwhenmakingadepositD.honestyinone'sactionscanhelphiminthefuture
成语中体现化学变化是
1分让王鹏最烦心的是他的客人都跑到永惠的餐馆去了. botheredWangPengmostthathiscustomersallwenttoYongHui'srestaurant.
10分Therearemanygreatphysicalandmentalbenefitsofgettinginshape.1Ifyouwanttogetinshapebutdon'tliketoruneverydayyoucantrythefollowingeffectivewaystoloseweight.Fastwalks.Thespeedatwhichyouwalkisextremelyimportantforweightloss.Althoughwalkingfordistancecanhelptogetinshapefasterthespeedisstillnecessary.2Aimfor45minutestoanhourofwalkingfor5﹣6daysaweekandyouwillseetheresultsfaster.Relaxingwalks.Ifyouwanttorelaxyourmindandbodyaswellastogetinshapegoforalongwalktwiceaday.Walkingwillhelpyouburncaloriesfeelbetterandthinkclearer3.Multitaskingwalks.Whenyouhavebusyschedulesitcanbedifficulttofindtimetoreturnyourphonecalls.4InfactI'magainstthisbecauseyouwon'trelaxtotallyandclearyourmindinthisway.Butifyoudon'thavetimethismayhelpyou.5Ifyouaregoingtoloseweightbereadytogoforalongerwalkatleasttwiceaweek.I'msureyouarestrongandcanwalklonger.Trytoaddafewmoremilesandyouwillgetclosertoyourgoal.A.LongwalksB.SetagoaltoloseweightC.Toburnmorecaloriestrytowalkfaster.D.SomeofthephonecallsarequiteimportantE.OneofthemistogetahealthyandlongerlifeF.HoweveryoucanwalkanddothisatthesametimeG.Moreoverwalkinghelpstofightstressandimproveyourmood.
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下列化学符号或符号中“2”的含义表述正确的是
10分Thecloseofthegardeningseasonisalwaysbitterbutsweet.Ihatesayinggoodbyetoallmyplantsandtradingthiscomfortablegreenworldforonethat'scoldandwhite.Buttherearealsoplentyofgoodthingsaboutautumn.Theweatheriscoolandthehumidityislow.Oncewe'vehadourfirstkillingfrostthepaceoftheharvestseasonisover.It'stimeforapplesandpotatoespumpkinsandmums.Andit'stimetogathertheseason'smostabundantcropleaves.ThelongerIgardenthegreatermyappreciationforthevalueofnaturalfertilizer.Andoneoftheverybestsourcesofnaturalfertilizerisautumnleaves.HereareafeweasywaysthatI'vefoundtoputleavestoworkinmygarden.Firstcutupasmanyofthemasyoucan.Cuttingoneleafintofiveortensmallerpiecesdoesseveralgoodthings.Ittakesupmuchlessspaceandincreasesthesurfaceareagivingmicrobesmanymoreplacestoworkwhichwillspeeduptherotofleaves.Itpreventstheleavesfrompackingtogetherintolayersthatwon'tletwaterorairin.ThenIputmostofthemintoplastictrashbagsinthebarnfornextspringwhenI'llusethemasmulch生根肥inmygardens.Intimetheleavesbecomesomethingcalledleafmold霉菌whichmakesplentyofmulch.What'smoreitdoeswondersforthesoilandIlikethelookofit.ByNovemberIaddtheseleavestotheworkingcompost堆肥pilethroughouttheyeartobalancethefoodleftoversandothermaterialsthatareusuallyofhighnitrogen.FormekeepingbusyisthebestwaytofendofftheblueswhichishowIsometimesfeelaswinterapproaches.1Whatisthetextmainlyabout?A.FunctionsoffallenleavesB.HowtoputfallenleavestoworkC.HowtospendtheautumnseasonD.Waystocuttheleavesintopieces2Whydoestheauthorfeelunhappyinautumn?A.TheweatheriscoolB.HehastogatherfallenleavesC.TheharvestseasonisoverD.Thegardenwillnotbefullofplants3Whatisthekeybenefitoffallenleavesaccordingtotheauthor?A.ToinspiretheauthorB.TotakeuplessspaceC.TobenaturalfertilizersD.Tobetheauthor'sfavorites.4Whichofthefollowingcanreplacetheunderlinedword'microbes'inParagraph3?A.ToolsB.CreaturesC.BacteriaD.Gardeners5Whatcanweinferfromthetext?A.LeafmoldisgoodforplantsgrowthB.TherearemanygoodthingsinautumnC.CuttingleavesuptakeupmorespaceD.Theauthoralwayskeepsbusyinwinter.
10分假定英语课上老师要求同桌之间交换修改作文请你修改你同桌写的以下作文.文中共有10处语言错误每句中最多有两处.错误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. 修改在错的词下划一横线___并在该词下面写出修改的词. 注意1.每处错误及修改均仅限一词; 2.只允许修改10处多者从第11处起不计分. Myschoollifeisveryinterestingbutmeaningful.Iusuallygetupataquarterpastsix.AfterIwashhisfaceIreadEnglishforabouthalfanhourthatIthinkisagoodhabit.Ialwaysgotoschoolbybiketoeatlunchatschoolandhaveashortsleepintheclassroom.Ontheafternoonschoolisoverat5o'clock.Afterschoolweoftenplaybasketballordosomeothersportontheplaygroundhappy.Iwenthomeataboutfiveforty.AfterhavesupperIwatchTVforwhileandthenIdomyhomework.Igotobedatabout930.
MakeTheBestUseofOurLand1isthelandthathasbeenprovidinguswitheverythingweneed2centuries.Inotherwordsalmosteverythingweusedailycomesfromthelanddirectlyor3indirect.Thefoodclotheshouseseventhebooksandfurnitureareallsuppliedbytheland.Butthelimitedlandisdecreasingat4surprisingspeed.5theexpandingofthecitiesthedevelopmentoftheindustryandoverpopulationlotsoflargepiecesofgoodfarmlandarebeingturnedintoresidentialareaswithmanyhousesandapartmentbuildingsorindustrialareasor6warehouse.Thereforesomemeasuresmust7takentostoptheabusingofourfarmland.Ontheotherhandwe8leteveryonerealizethedangerofbeingshortofland.Andalsoweshouldeducatethem9tomakebetteruseofour10.
30分Asweknowitisimpossibletomakenomistakesallone'slife.MygrandpaNybakkenisno1.Severaldecadesagohemadeamistake﹣an2mistakethough.OnacoldSaturdayGrandpawasbuildingsomewoodencasesfortheclotheshis3wassendingtoanorphanage孤儿院inCongo.Onhiswaybackhomehe4intohisshirtpocketforhisglassesbuttheyweregone.Sohedrovebacktothechurch.Hissearchproved5.Whenhe6replayedhisearlieractionsherealizedwhathappened.Theglasseshadslippedoutofhispocketand7intooneofthecases.Hisnewglasseshaving8him﹩20wereheadingforCongothatmorning!Hehadtodrivehome9.Severalmonthslaterthedirectoroftheorphanagecametogiveareportatmygrandfather'schurchwhichGrandpaalsoattended.Thedirectorsaid'Imustthankyouforthe10yousentlastyear.Thebandits土匪hadjustsweptthroughtheorphanage11everythingincludingmyglasses.12Ihadthemoneytherewassimplynowayof13thebrokenpairofglasses.14notbeingabletoseewellIexperiencedheadacheseveryday.Thenyourcases15.Whenmystaffremovedthecoverstheyfoundapairofglasseslyingontop.'Thenwiththe16hecontinued'WhenItried17theglassesitwasasthoughtheyhadbeenmadejustforme!Itwasamazing!'Thepeoplelistened18forthemiraculousglasses.Butthedirectormusthave19theirchurchwithanothertheythought.Therewerenoglassesontheir20ofthingstobesentoverseas.ButGrandpawassittingquietlyinthebackwithtearsstreamingdownhisface.1A.similarity B.success C.luck D.exception2A.perfect B.foolish C.formal D.common3A.factory B.church C.family D.country4A.turned B.reached C.filled D.put5A.proper B.reasonable C.useless D.necessary6A.mentally B.physically C.softly D.directly7A.fallen B.jumped C.forced D.broken8A.offered B.spent C.paid D.cost9A.disappointed B.pleased C.nervous D.satisfied10A.cases B.clothes C.glasses D.wishes11A.cutting B.destroying C.defending D.recording12A.Unless B.Aslongas C.Until D.Eventhough13A.replacing B.selling C.wearing D.earning14A.Exceptfor B.Alongwith C.Ratherthan D.Asfor15A.disappeared B.flew C.arrived D.broken16A.preparation B.regret C.satisfaction D.wonder17A.out B.over C.for D.on18A.sorry B.happy C.bored D.stressed19A.confused B.connected C.combined D.compared20A.case B.order C.list D.search
1分后来人们开始在有充足的食物和水的地方定居下来. Latermanbegantowherethefoodandwaterwereplentiful.
1分Mydreamhouseisonesbygreentreesandbeautifulflowers.
“含氟牙膏”中的“氟”可以防止龋齿这里的“氟”指的是
1.5分在想到Tony即将被回收时Claire只想一个人静静. RealizingTonywouldberecycledClairejustwantedto.
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空气成分中体积分数约占21%的是
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物质的俗名化学式一致的是
6分Ithasoftenbeensaidthatthetrueessence本质精髓ofDisneycanbeexperiencedsimplybysteppingfootinsidetheMagicKingdom.Openedin1971theThemeParkhasgonethroughmorethanthreedecadesofchangingculturesaconstantlyshiftingsocialclimateandanexplosionoftechnologythathasleftlesserplacesoutdated.YetsomehowtheMagicKingdomcontinuestoremainthekingofThemeParksdrawingmoreyearlyvisitorsthananyotherHowtheMagicKingdomhasmanagedtomaintainitscharmandappealovertheyearsisalessoninsimplicity.Ithasstayedtruetoitsoriginalvisionaplacewherefamiliescouldgatherinacleanandsafeenvironmenttoenjoythetimetheyspendtogether.NotriptoDisneyWorldiscompletewithoutvisitingtheMagicKingdom.ForveteranvisitorstoWaltDisneyWorldvisitingtheMagicKingdomislikevisitinganoldfriend.Tofirsttimevisitorstheyfindthemselvesquicklyandalmosthelplesslytransportedbacktotheirchildhood.TheMagicKingdomisdividedintofivedistinctareaslandsarrangedinaspoke﹣like轮辐一样的formationallmeetingatthetopofMainStreetUSrightinfrontofCinderellaCastle.ThefivelandsconsistofTomorrowlandFantasylandFrontierlandLibertySquareandAdventureland.Eachlandisthemedtoitsappropriatetitleandmaintainingthatthemeisimportanttotheparksoperation.AvastnetworkofundergroundtunnelsconnectallsectionsoftheMagicKingdomthuspreventingguestsfromseeinganyofthenecessarybehindthescenesoperationsandpreventingcastmembersfromonelandfromhavingtowalkthroughanother.Wellthatwastheoriginalideaanyway﹣recentchangestoparkpolicynowallowmemberstowalkfreelythroughtheparkinwhateveroutfittheyhappentobewearing.1What'sthebesttitleofthepassage?A.WaltDisneyLandintheUSB.TheMagicKingdomofDisneyC.FiveAreasofMagicKingdomD.HowMagicKingdomMaintainsItsCharm2WhichofthefollowingisNOTtrue?A.TheMagicKingdomplaysanimportantroleintheThemeParks.B.TheThemeParkhasbeenthereforoverthirtyyears.C.ThewaythattheMagicKingdomremainsitscharmforsolongisverysimple.D.TheMagicKingdomisarrangedindifferentshapes.3What'sthemeaningoftheunderlinedphrase'behindthescenes'inParagraph3?A.风景的后面B.幕后的C.场景之后D.秘密的
15分Americansbelievethattimeisa1limitresourcesotheytrytosaveandmanageit.peopledoalltheycan2squeezemoretimeoutoftheirlife.Businessmenoftencarry3notebookwiththescheduleofappointmentsanddeadlinesintheirpockets.ToAmericanspunctual守时means4showrespectforothers.Beingmorethantenminuteslateforanappointmentusually5callforanapologyoranexplanation.People6arerunninglatoftencallaheadtoletothersknowofthedelay.Americanlifestylesshowhowmuchpeoplerespectthetimeofothers.Whenpeopleplananeventtheyoftensetthetimeafewdaysorweeks7advance.Ifpeoplewanttocometoyourhouseforafriendlyvisittheywillusuallycallfirsttomakesureifitis8convenience.EvenAmericansadmitthatnoonecanmastertime.Timelikemoneyslipsso9easythroughourfingers.Andtimeliketheweatherisveryhardtopredict.Neverthelesstimeisoneofthemostprecious20giftinourlife.
10分假定英语课上老师要求同桌之间交换修改作文请你修改你同桌写的作文.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. 修改在错的词下画一横线并在该词下面写出修改后的词. 注意1.每处错误及其修改均仅限一词. 2.只允许修改10处多者从第11处起不计分. IwasveryexcitedthatIcouldnotfallasleepinlastnight.YesterdaymorningIwenttoabiggardeningcompanyforainterview.WhenIwasalittlechildhelpingmygrandfathergrowflowerinthegardenwasmyfavorite.AllwhatIwantedtobewasagardener.WhenIgettothecompanyIfoundthereweremanypeoplewaitingtherebutIdidn'tknowwhetherIcouldgetthejob.WhilewaitedIhelpedtheworkerstheretoremovethefallentreesandcleartheroad.LuckyIwastheonlyonethatfinallygotthejobbecausethemanagerdecidedtogivethejobsomeonewhowashelpful.
根据反应3Fe+4H2OX+4H2推断X的化学式为
甲和乙在一定条件下反应生成丙和丁的微观示意图如图结论正确的是
10分DarlingKelliI'msosorryIwillnotgettoseeyougrowupasIsowantto.Pleasedon'tblamepeopleortheworldforthis.IwishIdidn'thavecancerandyoudidn'thavetoseemeinpainasyouoftendonow.1Wedon'thavethattime.Iwon'tbeabletodropyouoffonyourfirstdayatbigschoolpickyouupafteryourfirstdateholdyouwhenyourhearthurtsorcheerwhenyougraduate.ButwhileyourolddadisstillaroundIthoughtI'dtrytogiveyousomelifeadvice.Ihopeitgivesyousomecomfort.SchoolEveryonewillsayit'simportanttoworkhardatschool.Hopefullyyou'llalwaysdoyourbest.Ididwellatschoolbutdiditdomemuchgoodinlife?Notreally.2MummyYouandyourmumwillargueattimesespeciallywhenyou'reateenager.3GiveMummyahugwhensheisfeelingsadandhelpeachothergetthroughanyhorribletimeswhenIamgone.Whenyou'reateenageryoumightthinkyourfriendsarerightandyourmumiswrong.Butshehastomakeharddecisionsforyou.Treatherwell.Christmas&birthdaysOnyourfirstChristmaswithoutmeI'dloveifyouandMummywouldlightacandleandremembermeforafewminutes.Itwouldbegreatifyoutwodidthemonkeydancetogether.That'ssomethingtomakemesmilefromupabove.I'vegivenNannySuepresentsforallyourbirthdays.IwishIcouldbetheretoseeyouopenthem.45Inlifemanypeoplewillsayyoucannotdothings.Youmakeupyourmind.Canyou?Bigchallengesinvolveriskssomakesmartchoices.ThosewhotoldmeIcouldn'tdocertainthingsdidn'twantmetodothem.Ifyouwantsomethingitisnearlyalwayspossiblesodoyourbest.I'msurethere'salotyoucanachieve!AndfinallythankyouforbeingyouKelli.Havingyouasmydaughteristhegreatesthonourofmylife.AllmylovealwaystoyouprincessandtoMummyDaddyA.Pleaseremembershelovesyouandwantsthebestforyou.B.Mostdadsanddaughtershavedecadestochataroundthekitchentable.C.Rememberyourlifemotto.D.Believeinyourself.E.Schoolworkisimportantbutmakesureyouhavefuntoo.F.Remembertowritethank﹣youlettersforpresentsofkindnessasitisalwaysnicetoactwithgraceandgratitude.G.Hopefullyyouwilllikeeverythingasit'shardtoimagineyouat1015and20.
1分Herourschooltotakepartinthecompetitionandallofuswereproudofhim.
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