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ThereisgrowinginterestinEastJapanRailwayCo.oneofthesixcompaniescreatedoutofthe1nationalrailwaysystem.Inanindustrylackingexcitinggrowth2itsplantousereal-estateassetsinandaroundtrainstations3isdrawinginterest. Inaplandubbed"StationRenaissance"thatit4inNovemberJREastsaidthatitwould5usingitscommercialspacesforshopsandrestaurantsextendingthemto6moresuitablefortheinformationage.Itwantstrainstationsaspick-up7forsuchgoodsasbooksflowersandgroceriespurchased8theInternet.Inacountry9urbanitesdependheavilyontrains10commutingabout16millionpeopleadaygotoitstrainstationsanywaythecompany11.Sopickinguppurchasesattrainstationsspare12extratravelandmissedhomedeliveries. JREastalreadyhasbeenusingitsstation13storesforthispurposebutitplanstocreate14spacesforthedeliveryofInternetgoods. Thecompanyalsoplanstointroduce15cards--knowninJapanasICcardsbecausetheyuseintegrated16forholdinginformation--17trainticketsandcommuterpasses18themagneticonesusedtodayintegratingthemintoasinglepass.Thiswillsavethecompanymoneybecause19forICcardsaremuchlessexpensivethanmagneticsystems.IncreaseduseofICcardsshouldalso20thespaceneededforticketvending. Readthefollowingtext.ChoosethebestwordsforeachnumberedblankandmarkABCorDonANSWERSHEET1.7
ThereisgrowinginterestinEastJapanRailwayCo.oneofthesixcompaniescreatedoutofthe1nationalrailwaysystem.Inanindustrylackingexcitinggrowth2itsplantousereal-estateassetsinandaroundtrainstations3isdrawinginterest. Inaplandubbed"StationRenaissance"thatit4inNovemberJREastsaidthatitwould5usingitscommercialspacesforshopsandrestaurantsextendingthemto6moresuitablefortheinformationage.Itwantstrainstationsaspick-up7forsuchgoodsasbooksflowersandgroceriespurchased8theInternet.Inacountry9urbanitesdependheavilyontrains10commutingabout16millionpeopleadaygotoitstrainstationsanywaythecompany11.Sopickinguppurchasesattrainstationsspare12extratravelandmissedhomedeliveries. JREastalreadyhasbeenusingitsstation13storesforthispurposebutitplanstocreate14spacesforthedeliveryofInternetgoods. Thecompanyalsoplanstointroduce15cards--knowninJapanasICcardsbecausetheyuseintegrated16forholdinginformation--17trainticketsandcommuterpasses18themagneticonesusedtodayintegratingthemintoasinglepass.Thiswillsavethecompanymoneybecause19forICcardsaremuchlessexpensivethanmagneticsystems.IncreaseduseofICcardsshouldalso20thespaceneededforticketvending. Readthefollowingtext.ChoosethebestwordsforeachnumberedblankandmarkABCorDonANSWERSHEET1.17
下列选项中属于化生的有
下述哪种病理过程叫机化
FormorethantwodecadesU.S.courtshavebeenlimitingaffirmative-actionprogramsinuniversitiesandotherareas.Thelegalrationaleisthatracialpreferencesareunconstitutionaleventhoseintendedtocompensateforracismorintolerance.Formanycollegesthismeansstudentscanbeadmittedonlyonmeritnotontheirraceorethnicity.IthasbeenadivisiveissueacrosstheU.S.aseducatorsblametheprolongedreactiontoaffirmative-actionfordeclinesinminorityadmissions.MeanwhileactivistscontinuetobattleracepreferencesincourtsfromMichigantoNorthCarolina. Nowchiefexecutivesofabouttwodozencompanieshavedecidedtoplungeheadfirstintothispoliticallyunsettleddebate.Theytogetherwith36universitiesand7non-profitableorganizationsformedaforumthatsetforthanactionplanessentiallydesignedtohelpcollegescircumventcourt-imposedrestrictionsonaffirmativeaction.TheCEOs’motive:"Ouraudienceisgrowingmorediversesothecommunitiesweservebenefitifouremployeesareraciallyandethnicallydiverse"aswellsaysoneCEOofacompanythatownsninetelevisionstations. Amongthestepstheformispushing:findingcreativeyetlegalwaystoboostminorityenrollmentthroughnewadmissionspolicies;promotingadmissionsdecisionsthatlookatmorethantestscores;andencouraginguniversitiestostepuptheirminorityoutreachandfinancialaid.Andtocounteraccusationsbycriticstochallengethesetacticsincourtthegroupsaysitwillgivelegalassistancetocollegessuedfortryingthem."Diversitydiminishedbythecourtmustbemadeupforinotherlegitimatelegalways"saysaforummember. Oneofthemorecontroversialmethodsadvocatedistheso-called10%rule.Theideaisforpublicuniversities--whicheducatethree-quartersofallU.S.undergraduates--toadmitstudentsWhoareinthetop10%oftheirhighschoolgraduatingclass.Doingsoallowscollegestotakeminoritieswhoexcelinaverageurbanschoolseveniftheywouldn’thavemadethecutunderthecurrentstatewiderankingmanyuniversitiesuse. Themajortactictheforumusesisto
化生是指
ThereisgrowinginterestinEastJapanRailwayCo.oneofthesixcompaniescreatedoutofthe1nationalrailwaysystem.Inanindustrylackingexcitinggrowth2itsplantousereal-estateassetsinandaroundtrainstations3isdrawinginterest. Inaplandubbed"StationRenaissance"thatit4inNovemberJREastsaidthatitwould5usingitscommercialspacesforshopsandrestaurantsextendingthemto6moresuitablefortheinformationage.Itwantstrainstationsaspick-up7forsuchgoodsasbooksflowersandgroceriespurchased8theInternet.Inacountry9urbanitesdependheavilyontrains10commutingabout16millionpeopleadaygotoitstrainstationsanywaythecompany11.Sopickinguppurchasesattrainstationsspare12extratravelandmissedhomedeliveries. JREastalreadyhasbeenusingitsstation13storesforthispurposebutitplanstocreate14spacesforthedeliveryofInternetgoods. Thecompanyalsoplanstointroduce15cards--knowninJapanasICcardsbecausetheyuseintegrated16forholdinginformation--17trainticketsandcommuterpasses18themagneticonesusedtodayintegratingthemintoasinglepass.Thiswillsavethecompanymoneybecause19forICcardsaremuchlessexpensivethanmagneticsystems.IncreaseduseofICcardsshouldalso20thespaceneededforticketvending. Readthefollowingtext.ChoosethebestwordsforeachnumberedblankandmarkABCorDonANSWERSHEET1.15
"I’venevermetahumanworthcloning"sayscloningexpertMarkWesthusinfromthecrampedconfinesofhislabatTexasA&MUniversity."It’sastupidendeavor.’That’saninterestingchoiceofadjectivecomingfromamanwhohasspentmillionsofdollarstryingtoclonea13-year-olddognamedMissy.Sofarheandhisteamhavenotsucceededthoughtheyhaveclonedtwocalvesandexpecttocloneacatsoon.TheyjustmightsucceedincloningMissylaterthisyear--orperhapsnotforanotherfiveyears.Itseemsthereproductivesystemofman’sbestfriendisoneofthemysteriesofmodemscience. Westhusin’sexperiencewithcloninganimalsleaveshimvexedbyallthistalkofhumancloning.InthreeyearsofworkontheMissyplicityprojectusinghundredsuponhundredsofcanineeggstheA&MteamhasproducedonlyadozenorsoembryoscarryingMissy’sDNA.Nonehavesurvivedthetransfertoasurrogatemother.Thewastageofeggsandthemanyspontaneouslyabortedfetusesmaybeacceptablewhenyou’redealingwithcatsorbullshearguesbutnotwithhumans."Cloningisincrediblyinefficientandalsodangerous"hesays. Evensodogcloningisacommercialopportunitywithaniceresearchpayoff.EversinceDollythesheepwasclonedin1997Westhusin’sphoneatA&MCollegeofVeterinaryMedicinehasbeenringingbusily.CostisnoobstacleforcustomerslikeMissy’smysteriousownerwhowisheshimremainunknowntoprotecthisprivacy.He’sploppeddown$3.7millionsofartofundtheresearchbecausehewantsatwintocarryonMissy’sfinequalitiesaftershedies.Butheknowsherclonemaynothavehertemperament.InastatementofpurposeMissy’sownerandtheA&Mteamsaytheyare"bothlookingforwardtostudyingthewaysthatherclonediffersfromMissy." ThefateofthedogsampleswilldependonWesthusin’swork.Heknowsthatevenifhegetsadogviablypregnanttheoffspringshouldtheysurvivewillfacetheproblemsshownatbirthbyotherclonedanimals:abnormalitieslikeimmaturelungsandheartandweightproblems."Whywouldyoueverwanttoclonehumans"Westhusinasks"whenwe’renotevenclosetogettingitworkedoutinanimalsyet" Wemayconcludefromthetextthat
ThereisgrowinginterestinEastJapanRailwayCo.oneofthesixcompaniescreatedoutofthe1nationalrailwaysystem.Inanindustrylackingexcitinggrowth2itsplantousereal-estateassetsinandaroundtrainstations3isdrawinginterest. Inaplandubbed"StationRenaissance"thatit4inNovemberJREastsaidthatitwould5usingitscommercialspacesforshopsandrestaurantsextendingthemto6moresuitablefortheinformationage.Itwantstrainstationsaspick-up7forsuchgoodsasbooksflowersandgroceriespurchased8theInternet.Inacountry9urbanitesdependheavilyontrains10commutingabout16millionpeopleadaygotoitstrainstationsanywaythecompany11.Sopickinguppurchasesattrainstationsspare12extratravelandmissedhomedeliveries. JREastalreadyhasbeenusingitsstation13storesforthispurposebutitplanstocreate14spacesforthedeliveryofInternetgoods. Thecompanyalsoplanstointroduce15cards--knowninJapanasICcardsbecausetheyuseintegrated16forholdinginformation--17trainticketsandcommuterpasses18themagneticonesusedtodayintegratingthemintoasinglepass.Thiswillsavethecompanymoneybecause19forICcardsaremuchlessexpensivethanmagneticsystems.IncreaseduseofICcardsshouldalso20thespaceneededforticketvending. Readthefollowingtext.ChoosethebestwordsforeachnumberedblankandmarkABCorDonANSWERSHEET1.13
ThereisgrowinginterestinEastJapanRailwayCo.oneofthesixcompaniescreatedoutofthe1nationalrailwaysystem.Inanindustrylackingexcitinggrowth2itsplantousereal-estateassetsinandaroundtrainstations3isdrawinginterest. Inaplandubbed"StationRenaissance"thatit4inNovemberJREastsaidthatitwould5usingitscommercialspacesforshopsandrestaurantsextendingthemto6moresuitablefortheinformationage.Itwantstrainstationsaspick-up7forsuchgoodsasbooksflowersandgroceriespurchased8theInternet.Inacountry9urbanitesdependheavilyontrains10commutingabout16millionpeopleadaygotoitstrainstationsanywaythecompany11.Sopickinguppurchasesattrainstationsspare12extratravelandmissedhomedeliveries. JREastalreadyhasbeenusingitsstation13storesforthispurposebutitplanstocreate14spacesforthedeliveryofInternetgoods. Thecompanyalsoplanstointroduce15cards--knowninJapanasICcardsbecausetheyuseintegrated16forholdinginformation--17trainticketsandcommuterpasses18themagneticonesusedtodayintegratingthemintoasinglepass.Thiswillsavethecompanymoneybecause19forICcardsaremuchlessexpensivethanmagneticsystems.IncreaseduseofICcardsshouldalso20thespaceneededforticketvending. Readthefollowingtext.ChoosethebestwordsforeachnumberedblankandmarkABCorDonANSWERSHEET1.1
前臂断肢再植手术成功后下述哪种愈合属于完全再生
维生素C缺乏常导致创伤愈合不良的主要原因是
ThereisgrowinginterestinEastJapanRailwayCo.oneofthesixcompaniescreatedoutofthe1nationalrailwaysystem.Inanindustrylackingexcitinggrowth2itsplantousereal-estateassetsinandaroundtrainstations3isdrawinginterest. Inaplandubbed"StationRenaissance"thatit4inNovemberJREastsaidthatitwould5usingitscommercialspacesforshopsandrestaurantsextendingthemto6moresuitablefortheinformationage.Itwantstrainstationsaspick-up7forsuchgoodsasbooksflowersandgroceriespurchased8theInternet.Inacountry9urbanitesdependheavilyontrains10commutingabout16millionpeopleadaygotoitstrainstationsanywaythecompany11.Sopickinguppurchasesattrainstationsspare12extratravelandmissedhomedeliveries. JREastalreadyhasbeenusingitsstation13storesforthispurposebutitplanstocreate14spacesforthedeliveryofInternetgoods. Thecompanyalsoplanstointroduce15cards--knowninJapanasICcardsbecausetheyuseintegrated16forholdinginformation--17trainticketsandcommuterpasses18themagneticonesusedtodayintegratingthemintoasinglepass.Thiswillsavethecompanymoneybecause19forICcardsaremuchlessexpensivethanmagneticsystems.IncreaseduseofICcardsshouldalso20thespaceneededforticketvending. Readthefollowingtext.ChoosethebestwordsforeachnumberedblankandmarkABCorDonANSWERSHEET1.3
"I’venevermetahumanworthcloning"sayscloningexpertMarkWesthusinfromthecrampedconfinesofhislabatTexasA&MUniversity."It’sastupidendeavor.’That’saninterestingchoiceofadjectivecomingfromamanwhohasspentmillionsofdollarstryingtoclonea13-year-olddognamedMissy.Sofarheandhisteamhavenotsucceededthoughtheyhaveclonedtwocalvesandexpecttocloneacatsoon.TheyjustmightsucceedincloningMissylaterthisyear--orperhapsnotforanotherfiveyears.Itseemsthereproductivesystemofman’sbestfriendisoneofthemysteriesofmodemscience. Westhusin’sexperiencewithcloninganimalsleaveshimvexedbyallthistalkofhumancloning.InthreeyearsofworkontheMissyplicityprojectusinghundredsuponhundredsofcanineeggstheA&MteamhasproducedonlyadozenorsoembryoscarryingMissy’sDNA.Nonehavesurvivedthetransfertoasurrogatemother.Thewastageofeggsandthemanyspontaneouslyabortedfetusesmaybeacceptablewhenyou’redealingwithcatsorbullshearguesbutnotwithhumans."Cloningisincrediblyinefficientandalsodangerous"hesays. Evensodogcloningisacommercialopportunitywithaniceresearchpayoff.EversinceDollythesheepwasclonedin1997Westhusin’sphoneatA&MCollegeofVeterinaryMedicinehasbeenringingbusily.CostisnoobstacleforcustomerslikeMissy’smysteriousownerwhowisheshimremainunknowntoprotecthisprivacy.He’sploppeddown$3.7millionsofartofundtheresearchbecausehewantsatwintocarryonMissy’sfinequalitiesaftershedies.Butheknowsherclonemaynothavehertemperament.InastatementofpurposeMissy’sownerandtheA&Mteamsaytheyare"bothlookingforwardtostudyingthewaysthatherclonediffersfromMissy." ThefateofthedogsampleswilldependonWesthusin’swork.Heknowsthatevenifhegetsadogviablypregnanttheoffspringshouldtheysurvivewillfacetheproblemsshownatbirthbyotherclonedanimals:abnormalitieslikeimmaturelungsandheartandweightproblems."Whywouldyoueverwanttoclonehumans"Westhusinasks"whenwe’renotevenclosetogettingitworkedoutinanimalsyet" WhenMr.Westhusinsayscloningisdangerousheimpliesthat
PositivesurprisesfromgovernmentreportsonretailsalesindustrialproductionandhousinginthepastfewmonthsareleadingeconomiststorevisetheirrealgrossdomesticproductforecastsupwardsupportingthenotionthattherecessionendedinDecemberorJanuary. Bearinmind:Thisrecoverywon’thavethevitalitynormallyassociatedwithanupturn.EconomistsnowexpectrealGDPgrowthofabout1.5%inthefirstquarter.That’sbetterthanthe0.4%theconsensusprojectedinDecemberbutmuchoftheadditionalgrowthwillcomefromaslowerpaceofinventorydrawdownsnotfromsurgingdemand. Moreovertheeconomywon’tgrowfastenoughtohelpthelabormarketsmuch.TheonlygoodnewsthereisthatjoblessclaimshavefallenbackfromtheirspikeafterSeptember11andthattheircurrentlevelsuggeststhepaceoflayoffsiseasing. TherecoveryalsodoesnotmeantheFederalReservewillraiseinterestratessoon.TheJanuarypriceindexesshowthatinflationremainstame.ConsequentlytheFedcantakeitstimeshiftingmonetarypolicyfromextremeaccommodationtorelativeneutrality. PerhapsthebestnewsfromthelatesteconomicreportswastheJanuarydataonindustrialproduction.Totaloutputfellonly0.1%itsbestshowingsinceJuly.Factoryoutputwasflatalsothebestperformanceinsixmonths.Thosenumbersmaynotsoundencouragingbutmanufacturershavebeeninrecessionsincelate2000Thedatasuggestthatthefactorysectorisfindingabottomfromwhichtostartitsrecovery. Productionofconsumergoodsforinstanceisalmostbackuptowhereitwasayearago.That’sbecauseconsumerdemandformotorvehiclesandothergoodsandthehousingindustryremainedhealthyduringtherecessionandtheyarestillgrowinginearly2002. Besidesboththemonthlyhomebuildingstartsnumberandthehousingmarketindexforthepasttwomonthsarerunningabovetheiraveragesforallof2001suggestingthathomebuildingisofftoagoodstartandprobablywon’tbeabigdragonGDPgrowththisyear. Equallyimportanttotheoutlookishowthesolidhousingmarketwillhelpdemandforhome-relatedgoodsandservices.Traditionallyconsumersbuythebulkoftheirfurnitureelectronicsandtextileswithinayearofpurchasingtheirhomes.Thusspendingonsuchitemswilldowellthisyearevenascarsalesslipnowthatincentivesarelessattractive.Lookfortheoutputofconsumergoodstotopyear-agolevelsincomingmonths. Eventhebusinessequipmentsectorseemstohavebottomedout.Itsoutputrose0.4%inJanuaryledbya0.6%jumpcomputergear.Apickupinordersforcapitalgoodsinthefourthquartersuggeststhatproductionwillkeepincreasing--althoughatarelaxedpace--incomingmonths. Americaneconomistsaresurprisedtoseethat
下列描述中哪种属于完全再生
ThereisgrowinginterestinEastJapanRailwayCo.oneofthesixcompaniescreatedoutofthe1nationalrailwaysystem.Inanindustrylackingexcitinggrowth2itsplantousereal-estateassetsinandaroundtrainstations3isdrawinginterest. Inaplandubbed"StationRenaissance"thatit4inNovemberJREastsaidthatitwould5usingitscommercialspacesforshopsandrestaurantsextendingthemto6moresuitablefortheinformationage.Itwantstrainstationsaspick-up7forsuchgoodsasbooksflowersandgroceriespurchased8theInternet.Inacountry9urbanitesdependheavilyontrains10commutingabout16millionpeopleadaygotoitstrainstationsanywaythecompany11.Sopickinguppurchasesattrainstationsspare12extratravelandmissedhomedeliveries. JREastalreadyhasbeenusingitsstation13storesforthispurposebutitplanstocreate14spacesforthedeliveryofInternetgoods. Thecompanyalsoplanstointroduce15cards--knowninJapanasICcardsbecausetheyuseintegrated16forholdinginformation--17trainticketsandcommuterpasses18themagneticonesusedtodayintegratingthemintoasinglepass.Thiswillsavethecompanymoneybecause19forICcardsaremuchlessexpensivethanmagneticsystems.IncreaseduseofICcardsshouldalso20thespaceneededforticketvending. Readthefollowingtext.ChoosethebestwordsforeachnumberedblankandmarkABCorDonANSWERSHEET1.5
骨化性肌炎在肌肉组织内出现骨组织称为
下列选项中不伴有细胞增生的肥大有
ThereisgrowinginterestinEastJapanRailwayCo.oneofthesixcompaniescreatedoutofthe1nationalrailwaysystem.Inanindustrylackingexcitinggrowth2itsplantousereal-estateassetsinandaroundtrainstations3isdrawinginterest. Inaplandubbed"StationRenaissance"thatit4inNovemberJREastsaidthatitwould5usingitscommercialspacesforshopsandrestaurantsextendingthemto6moresuitablefortheinformationage.Itwantstrainstationsaspick-up7forsuchgoodsasbooksflowersandgroceriespurchased8theInternet.Inacountry9urbanitesdependheavilyontrains10commutingabout16millionpeopleadaygotoitstrainstationsanywaythecompany11.Sopickinguppurchasesattrainstationsspare12extratravelandmissedhomedeliveries. JREastalreadyhasbeenusingitsstation13storesforthispurposebutitplanstocreate14spacesforthedeliveryofInternetgoods. Thecompanyalsoplanstointroduce15cards--knowninJapanasICcardsbecausetheyuseintegrated16forholdinginformation--17trainticketsandcommuterpasses18themagneticonesusedtodayintegratingthemintoasinglepass.Thiswillsavethecompanymoneybecause19forICcardsaremuchlessexpensivethanmagneticsystems.IncreaseduseofICcardsshouldalso20thespaceneededforticketvending. Readthefollowingtext.ChoosethebestwordsforeachnumberedblankandmarkABCorDonANSWERSHEET1.9
萎缩发生时细胞内常出现
下列子宫内膜癌的病理类型中与化生密切相关的是
FormorethantwodecadesU.S.courtshavebeenlimitingaffirmative-actionprogramsinuniversitiesandotherareas.Thelegalrationaleisthatracialpreferencesareunconstitutionaleventhoseintendedtocompensateforracismorintolerance.Formanycollegesthismeansstudentscanbeadmittedonlyonmeritnotontheirraceorethnicity.IthasbeenadivisiveissueacrosstheU.S.aseducatorsblametheprolongedreactiontoaffirmative-actionfordeclinesinminorityadmissions.MeanwhileactivistscontinuetobattleracepreferencesincourtsfromMichigantoNorthCarolina. Nowchiefexecutivesofabouttwodozencompanieshavedecidedtoplungeheadfirstintothispoliticallyunsettleddebate.Theytogetherwith36universitiesand7non-profitableorganizationsformedaforumthatsetforthanactionplanessentiallydesignedtohelpcollegescircumventcourt-imposedrestrictionsonaffirmativeaction.TheCEOs’motive:"Ouraudienceisgrowingmorediversesothecommunitiesweservebenefitifouremployeesareraciallyandethnicallydiverse"aswellsaysoneCEOofacompanythatownsninetelevisionstations. Amongthestepstheformispushing:findingcreativeyetlegalwaystoboostminorityenrollmentthroughnewadmissionspolicies;promotingadmissionsdecisionsthatlookatmorethantestscores;andencouraginguniversitiestostepuptheirminorityoutreachandfinancialaid.Andtocounteraccusationsbycriticstochallengethesetacticsincourtthegroupsaysitwillgivelegalassistancetocollegessuedfortryingthem."Diversitydiminishedbythecourtmustbemadeupforinotherlegitimatelegalways"saysaforummember. Oneofthemorecontroversialmethodsadvocatedistheso-called10%rule.Theideaisforpublicuniversities--whicheducatethree-quartersofallU.S.undergraduates--toadmitstudentsWhoareinthetop10%oftheirhighschoolgraduatingclass.Doingsoallowscollegestotakeminoritieswhoexcelinaverageurbanschoolseveniftheywouldn’thavemadethecutunderthecurrentstatewiderankingmanyuniversitiesuse. WhathasbeenadivisiveissueacrosstheUnitedStates
ThereisgrowinginterestinEastJapanRailwayCo.oneofthesixcompaniescreatedoutofthe1nationalrailwaysystem.Inanindustrylackingexcitinggrowth2itsplantousereal-estateassetsinandaroundtrainstations3isdrawinginterest. Inaplandubbed"StationRenaissance"thatit4inNovemberJREastsaidthatitwould5usingitscommercialspacesforshopsandrestaurantsextendingthemto6moresuitablefortheinformationage.Itwantstrainstationsaspick-up7forsuchgoodsasbooksflowersandgroceriespurchased8theInternet.Inacountry9urbanitesdependheavilyontrains10commutingabout16millionpeopleadaygotoitstrainstationsanywaythecompany11.Sopickinguppurchasesattrainstationsspare12extratravelandmissedhomedeliveries. JREastalreadyhasbeenusingitsstation13storesforthispurposebutitplanstocreate14spacesforthedeliveryofInternetgoods. Thecompanyalsoplanstointroduce15cards--knowninJapanasICcardsbecausetheyuseintegrated16forholdinginformation--17trainticketsandcommuterpasses18themagneticonesusedtodayintegratingthemintoasinglepass.Thiswillsavethecompanymoneybecause19forICcardsaremuchlessexpensivethanmagneticsystems.IncreaseduseofICcardsshouldalso20thespaceneededforticketvending. Readthefollowingtext.ChoosethebestwordsforeachnumberedblankandmarkABCorDonANSWERSHEET1.11
"I’venevermetahumanworthcloning"sayscloningexpertMarkWesthusinfromthecrampedconfinesofhislabatTexasA&MUniversity."It’sastupidendeavor.’That’saninterestingchoiceofadjectivecomingfromamanwhohasspentmillionsofdollarstryingtoclonea13-year-olddognamedMissy.Sofarheandhisteamhavenotsucceededthoughtheyhaveclonedtwocalvesandexpecttocloneacatsoon.TheyjustmightsucceedincloningMissylaterthisyear--orperhapsnotforanotherfiveyears.Itseemsthereproductivesystemofman’sbestfriendisoneofthemysteriesofmodemscience. Westhusin’sexperiencewithcloninganimalsleaveshimvexedbyallthistalkofhumancloning.InthreeyearsofworkontheMissyplicityprojectusinghundredsuponhundredsofcanineeggstheA&MteamhasproducedonlyadozenorsoembryoscarryingMissy’sDNA.Nonehavesurvivedthetransfertoasurrogatemother.Thewastageofeggsandthemanyspontaneouslyabortedfetusesmaybeacceptablewhenyou’redealingwithcatsorbullshearguesbutnotwithhumans."Cloningisincrediblyinefficientandalsodangerous"hesays. Evensodogcloningisacommercialopportunitywithaniceresearchpayoff.EversinceDollythesheepwasclonedin1997Westhusin’sphoneatA&MCollegeofVeterinaryMedicinehasbeenringingbusily.CostisnoobstacleforcustomerslikeMissy’smysteriousownerwhowisheshimremainunknowntoprotecthisprivacy.He’sploppeddown$3.7millionsofartofundtheresearchbecausehewantsatwintocarryonMissy’sfinequalitiesaftershedies.Butheknowsherclonemaynothavehertemperament.InastatementofpurposeMissy’sownerandtheA&Mteamsaytheyare"bothlookingforwardtostudyingthewaysthatherclonediffersfromMissy." ThefateofthedogsampleswilldependonWesthusin’swork.Heknowsthatevenifhegetsadogviablypregnanttheoffspringshouldtheysurvivewillfacetheproblemsshownatbirthbyotherclonedanimals:abnormalitieslikeimmaturelungsandheartandweightproblems."Whywouldyoueverwanttoclonehumans"Westhusinasks"whenwe’renotevenclosetogettingitworkedoutinanimalsyet" WhichofthefollowingbestrepresentsMr.Westhusin’sattitudetowardcloning
组织修复过程中再生能力弱的组织是
下述各种细胞中哪种再生能力最强
ThereisgrowinginterestinEastJapanRailwayCo.oneofthesixcompaniescreatedoutofthe1nationalrailwaysystem.Inanindustrylackingexcitinggrowth2itsplantousereal-estateassetsinandaroundtrainstations3isdrawinginterest. Inaplandubbed"StationRenaissance"thatit4inNovemberJREastsaidthatitwould5usingitscommercialspacesforshopsandrestaurantsextendingthemto6moresuitablefortheinformationage.Itwantstrainstationsaspick-up7forsuchgoodsasbooksflowersandgroceriespurchased8theInternet.Inacountry9urbanitesdependheavilyontrains10commutingabout16millionpeopleadaygotoitstrainstationsanywaythecompany11.Sopickinguppurchasesattrainstationsspare12extratravelandmissedhomedeliveries. JREastalreadyhasbeenusingitsstation13storesforthispurposebutitplanstocreate14spacesforthedeliveryofInternetgoods. Thecompanyalsoplanstointroduce15cards--knowninJapanasICcardsbecausetheyuseintegrated16forholdinginformation--17trainticketsandcommuterpasses18themagneticonesusedtodayintegratingthemintoasinglepass.Thiswillsavethecompanymoneybecause19forICcardsaremuchlessexpensivethanmagneticsystems.IncreaseduseofICcardsshouldalso20thespaceneededforticketvending. Readthefollowingtext.ChoosethebestwordsforeachnumberedblankandmarkABCorDonANSWERSHEET1.19
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