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影響混凝土強度和超聲波傳播速度間的定量關系的因素有哪些?

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正確答案:

影響因素有:骨料的品種;粒徑的大小;水泥的品種;用水量和水灰比;混凝土的齡期;測試時試件的溫度和含水率。

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HowaFrenchmanisrevivingMcDonald’sinEurope A.WhenDenisHennequintookoverastheEuropeanbossofMcDonald’sinJanuary2004,theworld’sbiggestrestaurantchainwasshowingsignsofrecoveryinAmericaandAustralia,butsalesinEuropeweresluggishordeclining.OneexceptionwasFrance,whereMrHennequinhaddoneasterlingjobasheadofthegroup’sFrenchsubsidiarytosellmoreBigMacstohiscompatriots.Histaskwastoreplicatethissuccessinall41oftheEuropeancountrieswhereanti-globalisers’favouriteenemyoperates. B.SofarMrHennequinisdoingwell.LastyearEuropeansalesincreasedby5.8%andthenumberofcustomersby3.4%,thebestannualresultsinnearly15years.Europeaccountedfor36%ofthegroup’sprofitsandfor28%ofitssales.DecemberwasanespeciallygoodmonthascustomerstooktoseasonalmenuofferingsinFranceandBritain,andtoapromotioninGermanybasedonthegameofMonopoly. C.MrHennequin’srecipeforrevivalistobemoreopenabouthiscompany’soperations,tobe“locallyrelevant”,andtoimprovetheexperienceofvisitinghis6,400restaurants.McDonald’sisblamedformakingpeoplefat,exploitingworkers,treatinganimalscruelly,pollutingtheenvironmentandsimplyforbeingAmerican.MrHennequinsayshewantstoengageinadialoguewiththepublictoaddresstheseconcerns. D.Heintroduced“opendoor”visitordaysineachcountrywhichbecamehugelypopular.InPolandalonesome50,000visitorscametoMcDonald’sthroughthevisitors’programmelastyear.TheNutritionInformationInitiative,launchedlastyear,putdetailedlabelsonMcDonald’spackagingwithdataoncalories,protein,fat,carbohydratesandsaltcontent.Thedetailsarealsoprintedontray-liners. E.MrHennequinalsowantspeopletoknowthat“McJobs”,thelow-paidmenialjobsatMcDonald’srestaurants,aremuchbetterthanpeoplethink.Butsomeofhiseffortshavebackfired:lastyearhesparkedacontroversywiththeintroductionofa“McPassport”thatallowsMcDonald’semployeestoworkanywhereintheEuropeanUnion.PoliticiansaccusedthefirmofaploytomakecheaplabourfromeasternEuropemoreeasilyavailabletoMcDonald’smanagersacrossthecontinent. F.Tostayintouchwithlocalneedsandpreferences,McDonald’semployslocalbossesasmuchaspossible.ARussianisrunningMcDonald’sinRussia,thoughaSerbisinchargeofGermany.Thegroupbuysmainlyfromlocalsuppliers.Four-fifthsofitssuppliesinFrancecomefromlocalfarmers,forexample.(SomeoftheFrenchfarmerswhocampaignedagainstthecompanyinthelate1990ssubsequentlydiscoveredthatitwas,infact,buyingtheirproduce.)AndithirescelebritiessuchasHeidiKlum,aGermanmodel,aslocalbrandambassadors. G.InhispreviousjobMrHennequinestablisheda“designstudio”inFrancetospruceuphiscompany’sdrabrestaurantsandadapttheinteriortolocaltastes.ThestudioisnowmastermindingimprovementseverywhereinEurope.Healsosetupa“foodstudio”,wherecooksdevisenewrecipesinresponsetolocaltrends. H.GivenFrance’sreputationasthemostanti-AmericancountryinEurope,itseemsoddthatMcDonald’srevivalinEuropeisbeingledbyaFrenchman,usingideascookedupintheFrenchmarket.ButFranceisinfactthecompany’smostprofitablemarketafterAmerica.ThemarketwhereMcDonald’sisweakestinEuropeisnotFrance,butBritain. I.“FixingBritainshouldbehispriority,”saysDavidPalmer,arestaurantanalystatUBS.Almosttwo-thirdsofthe1,214McDonald’srestaurantsinBritainarecompany-owned,comparedwith40%inEuropeand15%inAmerica.Thecompanysuffersfromthevolatilityofsalesatitsownrestaurants,butcanrelyonsteadyincomefromfranchisees.Soitshouldsellasmanyunderperformingoutletsaspossible,saysMrPalmer. J.M.MarkWiltamuth,ananalystatMorganStanley,estimatesthatEuropeancompany-ownedrestaurants’marginswillincreaseslightlyto16.4%in2007.Thisisstilllessthaninthelate1990sandbelowAmerica’s18-19%today.ButitismuchbetterthanbeforeMrHennequin’sreign.HeisalreadybeingtippedasthefirstEuropeancandidateforthegroup’stopjobinIllinois.NobodywouldcallthataMcJob. NotestoReadingPassage1 1.sterling高質量的 e.g.Hehasmanysterlingqualities.他身上有許多優秀的品質。 2.menial不體面的,乏味的(工作、職業) 3.spruceup打扮整齊、漂亮、裝飾 4.mastermind指揮、謀劃(一個計劃或活動) e.g.Thepoliceknowwhomastermindedtherobbery.警察知道是誰策劃了那次搶劫。 5.underperform表現不佳表現出低于標準的工作水平、企業出現虧本 Questions1-6 DothefollowingstatementsreflecttheclaimsofthewriterinReadingPassage1? WriteyouranswerinBoxes1-6onyouranswersheet. TRUEifthestatementreflectstheclaimsofthewriter FALSEifthestatementcontradictstheclaimsofthewriter NOTGIVENifitisimpossibletosaywhatthewriterthinksaboutthis 1.McDonaldwasshowingthesignofrecoveryinallEuropeancountriesexceptFranceafterDenisHennequintookofficeasthebossofEuro-markets. 2.Startingfromlastyear,detailedlabelsareputonMcDonald’spackaginganddetailedinformationisalsoprintedontray-liners. 3.Franceissaidtobethemostanti-AmericancountryinEurope,buttheideasofthe“opendoor”visitingdaysand“McPassport”areinventedintheFrenchmarket. 4.BritainpossessestheweakestMcDonaldmarketamongEuropeancountriesandapproximately1214McDonald’srestaurantsarecompany-owned. 5.AccordingtoDavidPalmer,arestaurantanalystatUBS,DavidHennequinshouldtreattheproblemaboutMcDonaldinBritainasthemostimportantthing. 6.DavidPalmersuggestedthatthemanagementofMcDonalodinItalyshouldsellasmanyitsoutletswhichlosemoneyinbusinessaspossibleforrevival. Questions7-10 ChoosetheappropriatelettersA-Dandwritetheminboxes7-10onyouranswesheet. 7.Theword“sterling”inline3ofParagraphAmeans__________. A.difficult B.menial C.terrible D.excellent 8.WhichofthefollowingstatementsontheaccusationofMacDonaldisNOTTRUE? A.Ittendstomakepeoplefat. B.Itsoperationsareveryvague. C.Ittendstoexploitworkers. D.Ittendstotreatanimalscruelly. 9.WhichofthefollowingmeasurestakenbyDenisHennequinproducedundesiredresult? A.“FoodStudio”scheme. B.“OpenDoor”visitordays. C.The“McPassport”scheme. D.TheNutritionInformationInitiative. 10.WhatdidDenisHennequindosoastorespondtolocaltrends? A.setupa“FoodStudio”. B.establisheda“DesignStudio”. C.hiredcelebritiesaslocalbrandambassadors. D.employedlocalbossesasmuchaspossible. Questions11-14 Completeeachofthefollowingstatements(Questions11-14)withwordsornumbertakenfromReadingPassage1. WriteNOMORETHANTHREEWORDSforeachanswer. Writeyouranswersinboxes11-14onyouranswersheet. 11.AfterJanuary2004,McDonaldwasmakingimprovementfollowingaperiodofslumpinAmericaandAustralia,butsalesinEuropewere…………………………. 12.BusinessofMcDonaldinFranceandBritainwasparticularlygoodinDecembersincecustomerstookto…………………………….. 13.Comparedwithothercountries,FranceisMcDonald’s……………………….nexttoAmerica. 14.…………………….ofMcDonald’srestaurantsinAmericaarecompanied–ownedandthefigureismuchlowerthanthatinBritain.
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