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在处理两岸关系中，坚持一个中国的核心是
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两岸关系和平发展的政治基础是
坚持一个中国原则
坚持社会主义制度
坚持“和平统一，一个中国”方针
坚持高度自治的方针
坚持一个中国原则是发展两岸关系和实现和平统一的基础
对
错
NULL
NULL
坚持一个中国是和平统一一国两制的核心是发展两岸关系和实现和平统一的基础
2015年11月7日海峡两岸领导人____在新加坡进行世纪之握历史性会面这是1949年以来两岸领
①②
①④
②③
②④
坚持一个中国原则是发展两岸关系和实现和平统一的基础
坚持原则是两岸关系和平发展的政治基础尽管两岸尚未统一 但大陆和台湾同属一个中国的事实从未改变
一个中国
一国两制
和平统一
民族利益
从政治学角度分析为什么坚持一个中国原则是发展两岸关系和实现和平统一的基础
两岸关系和平发展的政治基础是
坚持社会主义制度
坚持一个中国原则
坚持高度自治的方针
实现两岸直接通邮、通航和通商
坚持原则是两岸关系和平发展的政治基础尽管两岸尚未统一但大陆和台湾同属一个中国的事实从未改变
一个中国
一国两制
和平统一
1992年11月大陆的海峡两岸关系协会与台湾的海峡交流基金会就如何表明坚持一个中国原则的态度问题以口
实现两岸和平统一的前提是______
实现两岸三通
坚持一个中国的原则
发展两岸经贸关系
促进两岸关系良性互动
.近年来海峡两岸的关系进入了一个崭新的发展阶段两岸关系和平发展最根本的前提坚持一个中国的原则
1992年大陆海峡两岸关系协会与台湾海峡交流基金会就海峡两岸关系达成共识其内容是两岸均坚持
一个中国
一国两制
和平统一
互补互利
一个中国原则是两岸关系的政治基础
实现两岸和平统一的前提是___________
实现两岸三通
坚持一个中国原则
发展两岸经贸关系
促进两岸关系良性互动
发展两岸关系和实现和平统一的基础是
坚持社会主义制度
坚持一个中国原则
坚持高度自治的方针
实现两岸直接通邮、通航和通商
坚持一个中国原则是发展两岸关系和实现和平统一的基础这里所指的一个中国原则是指______
世界上只有一个中国
大陆和台湾同属一个中国
中国的主权和领土完整不容分割
坚持“一国”，可有“两府”
大陆的两岸关系协会与台湾的海峡交流基金会就解决两会事务性商谈中如何表明坚持一个中国原则的态度问题所达
两岸关系和平发展的政治基础是
坚持四项基本原则
坚持一个中国原则
是两岸关系和平发展的政治基础
尽快三通
坚持一个中国原则
加快经济交流与协商谈判
结束两岸敌对状态
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SomeoilcompaniesplantogetridofsomeofthepollutiontheyproducebypumpingitintorocksdeepinsidetheEarthwheretheysayitwillstayforthousandsofyears.Otherpeoplethougharen’tsosurethisisadvisable;environmentalgroupssaythatputtingthispollutionbackintotheEarthisabadidea. Whenoilburnsitdoesn’tjustproduceheat:italsoproducescarbondioxide.Carbondioxideisanaturalpartoftheairbutbecausepeopleburnsomuchoilthere’stoomuchcarbondioxideintheair.Thisextracarbondioxideispollution;somescientificstudiesshowthatcarbondioxideisoneofthe"greenhousegases’thatiscausingtheEarth’stemperaturetorise. Environmentalistssaythattheoilcompanies’plansmaynotwork.Theoilcompaniessaytheyaremakingsurethatthegaswillneverescapebutenvironmentalistswonderhowtheoilcompaniescanbesosurethatthegaswon’tseepintotheair.Theyalsopointoutthatthere’snowaytochecktomakesurethegasisn’tleaking.Inadditiontheenvironmentalistspointoutthatthepumpingcostsmoney—forresearchandforequipment—thattheoilcompaniesshouldbespendingonpreventingpollutionratherthanonjustmovingitsomeplaceelse. AnotherproblemsaysomepeoplewhoareconcernedabouttheEarthisthatiftheoilcompaniesfindacheapwaytogetridoftheirpollutiontheywon’tlookfornewkindsofenergy.Theseenvironmentalistssaythatenergycompaniesshouldberesearchingwaystousehydrogenwindpowerandsolarpowerinsteadoffindingbetterwaystouseoil.Theyarguethatcontinuingtouseoilmeansthatwewillstillneedtobuyoilfromothercountriesinsteadofproducingourowncheapcleanenergy. Environmentalistsalsosaythatburyingpollutionjustpushestheproblemintothefutureratherthanreallysolvingit.TheysaythatiftheoilcompaniespumpcarbondioxideintotherocksinsidetheEarthitwillbethereforthousandsofyearsandthatnooneknowsifthisplan—evenifitworks—mightturnintoapollutionproblemforallofusinthefuture. TheoilcompaniesinsistthattheirplanissafeandthatputtingthegasinsidetheEarthisareasonablewaytodealwithit.TheypointoutthatthereisalotofroomintheEarthforthisextragasandthatputtingcarbondioxideinsidetheEarthmeansthatthegaswon’tbeintheairandifit’snotintheairitwon’tmaketheEarthwarmer. WhichofthefollowingisNOTmentionedasadisadvantageofburyingpollution
Druguseisrisingdramaticallyamongthenation’syouthafteradecadeofdecline.From1993to1994marijuanauseamongyoungpeople1from12to17jumped50percent.Oneinfivehighschoolseniors2marijuanadaily.MonitoringtheFuturewhich3studentdruguseannuallyreportsthatnegativeattitudesaboutdrugshavedeclinedforthefourthyearinarow.4youngpeopleseegreatriskinusingdrugs.Mood-alteringpharmaceuticaldrugsare5newpopularityamongyoungpeople.Ritalin6asadietpillinthe1970sandnowusedto7hyperactivechildrenhasbecomea8drugoncollegecampuses.Acentralnervoussystem9Ritalincancausestrokeshypertensionandseizures.RohypnolproducedinEuropeasa10tranquilizerlowersinhibitionsandsuppressesshort-termmemorywhichhasledtosomewomenbeingrapedbymentheyaregoingoutwith.11takenwithalcoholitseffectsaregreatly12.RocksingerKurtCobaincollapsedfroman13ofRohypnolandchampagneamonthbeforehecommitted14in1994.InFloridaandTexasRohypnolhasbecomewidelyabusedamongteenswhoseethedrugasalessexpensive15formarijuanaandLSD.Alcoholandtobaccouseisincreasingamongteenagers16youngeradolescents.Eachyearmorethanonemillionteensbecomeregularsmokers17theycannotlegallypurchasetobacco.By12thgradeoneinthreestudentssmokes.In1995oneinfive14-year-oldsreportedsmokingregularlya33percentjump181991.Drinkingamong14-year-oldsclimbed50percentfrom1992to1994andallteensreportedsubstantialincreasesin19drinking.In1995oneinfive10thgradersreportedhavingbeendrunkinthepast30days.Two-thirdsofhighschoolseniorssaytheyknowa20withadrinkingproblem. Readthefollowingtext.ChoosethebestwordsforeachnumberedblankandmarkABCorDonANSWERSHEET1.19
Druguseisrisingdramaticallyamongthenation’syouthafteradecadeofdecline.From1993to1994marijuanauseamongyoungpeople1from12to17jumped50percent.Oneinfivehighschoolseniors2marijuanadaily.MonitoringtheFuturewhich3studentdruguseannuallyreportsthatnegativeattitudesaboutdrugshavedeclinedforthefourthyearinarow.4youngpeopleseegreatriskinusingdrugs.Mood-alteringpharmaceuticaldrugsare5newpopularityamongyoungpeople.Ritalin6asadietpillinthe1970sandnowusedto7hyperactivechildrenhasbecomea8drugoncollegecampuses.Acentralnervoussystem9Ritalincancausestrokeshypertensionandseizures.RohypnolproducedinEuropeasa10tranquilizerlowersinhibitionsandsuppressesshort-termmemorywhichhasledtosomewomenbeingrapedbymentheyaregoingoutwith.11takenwithalcoholitseffectsaregreatly12.RocksingerKurtCobaincollapsedfroman13ofRohypnolandchampagneamonthbeforehecommitted14in1994.InFloridaandTexasRohypnolhasbecomewidelyabusedamongteenswhoseethedrugasalessexpensive15formarijuanaandLSD.Alcoholandtobaccouseisincreasingamongteenagers16youngeradolescents.Eachyearmorethanonemillionteensbecomeregularsmokers17theycannotlegallypurchasetobacco.By12thgradeoneinthreestudentssmokes.In1995oneinfive14-year-oldsreportedsmokingregularlya33percentjump181991.Drinkingamong14-year-oldsclimbed50percentfrom1992to1994andallteensreportedsubstantialincreasesin19drinking.In1995oneinfive10thgradersreportedhavingbeendrunkinthepast30days.Two-thirdsofhighschoolseniorssaytheyknowa20withadrinkingproblem. Readthefollowingtext.ChoosethebestwordsforeachnumberedblankandmarkABCorDonANSWERSHEET1.3
测定值与真实值之间的不精确性被称为
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一些教师想在学校里做一个有关班级大小对化学成绩的影响的实验班级大小是自变量有4种水平分别为10～148～2326～3134～38个学生参与研究的有4所中学每所有8个化学班每种水平各2个班该实验中的因变量是什么列举出尽可能多的无关变量
SomeoilcompaniesplantogetridofsomeofthepollutiontheyproducebypumpingitintorocksdeepinsidetheEarthwheretheysayitwillstayforthousandsofyears.Otherpeoplethougharen’tsosurethisisadvisable;environmentalgroupssaythatputtingthispollutionbackintotheEarthisabadidea. Whenoilburnsitdoesn’tjustproduceheat:italsoproducescarbondioxide.Carbondioxideisanaturalpartoftheairbutbecausepeopleburnsomuchoilthere’stoomuchcarbondioxideintheair.Thisextracarbondioxideispollution;somescientificstudiesshowthatcarbondioxideisoneofthe"greenhousegases’thatiscausingtheEarth’stemperaturetorise. Environmentalistssaythattheoilcompanies’plansmaynotwork.Theoilcompaniessaytheyaremakingsurethatthegaswillneverescapebutenvironmentalistswonderhowtheoilcompaniescanbesosurethatthegaswon’tseepintotheair.Theyalsopointoutthatthere’snowaytochecktomakesurethegasisn’tleaking.Inadditiontheenvironmentalistspointoutthatthepumpingcostsmoney—forresearchandforequipment—thattheoilcompaniesshouldbespendingonpreventingpollutionratherthanonjustmovingitsomeplaceelse. AnotherproblemsaysomepeoplewhoareconcernedabouttheEarthisthatiftheoilcompaniesfindacheapwaytogetridoftheirpollutiontheywon’tlookfornewkindsofenergy.Theseenvironmentalistssaythatenergycompaniesshouldberesearchingwaystousehydrogenwindpowerandsolarpowerinsteadoffindingbetterwaystouseoil.Theyarguethatcontinuingtouseoilmeansthatwewillstillneedtobuyoilfromothercountriesinsteadofproducingourowncheapcleanenergy. Environmentalistsalsosaythatburyingpollutionjustpushestheproblemintothefutureratherthanreallysolvingit.TheysaythatiftheoilcompaniespumpcarbondioxideintotherocksinsidetheEarthitwillbethereforthousandsofyearsandthatnooneknowsifthisplan—evenifitworks—mightturnintoapollutionproblemforallofusinthefuture. TheoilcompaniesinsistthattheirplanissafeandthatputtingthegasinsidetheEarthisareasonablewaytodealwithit.TheypointoutthatthereisalotofroomintheEarthforthisextragasandthatputtingcarbondioxideinsidetheEarthmeansthatthegaswon’tbeintheairandifit’snotintheairitwon’tmaketheEarthwarmer. Accordingtothepassageoilresultsinairpollutionbecause
按实验控制程度划分在真实的教育情境中不能用真正的实验设计来控制无关变量不能采用随机化方法分派被试情况的是
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假定对高中一年级至三年级的男生进行身体素质的测试确定可能对测试成绩的差异产生影响的变量或因素
Sleepisafunnything.We’retaughtthatweshouldgetsevenoreighthoursanightbutalotofusgetbyjustfineonlessandsomeofusactuallysleeptoomuch.AstudyoutoftheUniversityofBuffalolastmonthreportedthatpeoplewhoroutinelysleepmorethaneighthoursadayandarestilltiredarenearlythreetimesaslikelytodieofstroke—probablyasaresultofanunderlyingdisorderthatkeepsthemfromsnoozingsoundly. Doctorshavetheirownspecialsleepproblems.Residentsarefamouslysleepdeprived.WhenIwastrainingtobecomeadoctoritwasnotunusualtowork40hoursinarowwithoutrest.Mostofustookitinstrideconfidentwecouldstilldeliverthehighestqualityofmedicalcare. Maybeweshouldn’thavebeensosureofourselves.AnarticleintheJournaloftheAmericanMedicalAssociationpointsoutthatinthemorningafter24hoursofsleeplessnessaperson’smotorperformanceiscomparabletothatofsomeonewhoislegallyintoxicated.Curiouslysurgeonswhobelievethatoperatingundertheinfluenceisgroundsfordismissaloftendon’tthinktwiceaboutoperatingwithoutenoughsleep. "Icouldtellyouhorrorstories"saysJayaAgrawalpresidentoftheAmericanMedicalStudentAssociationwhichrunsawebsitewhereresidentscanpostanonymousanecdotes.Someareterrifying."Iwasoperatingafterbeingupforover36hours"onewrites."Iliterallyfellasleepstandingupandnearlyfaceplantedintothewound." "PracticallyeverysurgicalresidentIknowhasfallenasleepatthewheeldrivinghomefromwork"writesanother."Iknowofthreewhohavehitparkedcars.Anotherhitaconveniencestoreontheroadsidegoing[105km/h]." "Yourownpatientshavebecometheenemy"writesathird"becausetheyaretheonethingthatstandsbetweenyouandafewhoursofsleep." Agrawal’sorganizationissupportingthePatientandPhysicianSafetyandProtectionActof2001introducedlastNovemberbyRepresentativeJohnConyersJr.ofMichigan.ItskeyprovisionsmodeledonNewYorkState’sregulationsincludean80-hourworkweekanda24hourwork-shiftlimit. Mostdoctorshoweverresistsuchinterference.Dr.CharlesBinkleyaseniorsurgeryresidentattheUniversityofMichiganagreesthatsomethingneedstobedonebutbelieves"doctorsshouldbeboundbytheirconsciencenotbythegovernment." TheU.S.controlsthehoursofpilotsandtruckdrivers.Butuntilsuchasystemisinplacefordoctorspatientsareontheirown.Ifyou’reworriedaboutthepeopletreatingyouyoushouldfeelfreetoaskhowmanyhoursofsleeptheyhavehad.Doctorsfortheirparthavetogiveuptheirposeofinfallibilityandgettheresttheyneed. Inthelastparagraphtheexpressionpatientsareontheirownmostprobablymeans
ItmaynothavegeneratedmuchinterestoutsideenergyandinvestmentcirclesbutarecentcommentbyTidewaterInc.presidentDeanTaylorsentearthquakesthroughtheNewOrleansbusinesscommunity.InJuneTaylortoldtheHoustonChroniclethattheinternationalmarineservicescompany—theworld’slargestoperatorofshipsservingtheoffshoreoilindustry—wasseriouslyconsideringmovingitsheadquartersalongwithscoresofadministrativejobsfromtheCrescentCitytoHouston."Wehavealotofsympathyforthecity"Taylorsaid."Butourshareholdersdon’tpayustohavesympathy.Theypayustohaveresultsforthem." Itwasthelastthingthehurricane-scarredcityneededtohear.Tidewaterwasfoundedherealittlemorethan50yearsagoandkeptitsmainofficeinNewOrleansthroughouttheoilbustofthe1980sandthefollowingdecadesofindustryconsolidationwhendozensofenergyfirmsallbutabandonedNewOrleansforgreenerpasturesontheTexascoast.InthenearlytwoyearssinceHurricaneKatrinaravagedthecitythepaceofexodushasaccelerated.complicatingNewOrleans’haltingrecovery;accordingtothelocalbusinessweeklyCityBusinessthemetropolitanareahaslost12ofthe23publiclytradedcompaniesheadquarteredheretakingwhite-collarjobscorporatecommunitysupportandsorelyneededtaxpayerswiththem—andthreateningtoleavethecityevenmoredependentonatourismbasedeconomythanitwasbeforethestorm. Makingmattersworsesomeobserverssayisthecityleadership’sapparentindifference10thebloodletting.JustweeksafterHurricaneKatrinainAugust2005MayorRayNaginthenintheveryearlystagesofaheatedreelectionbiddismissedwarningsthatmanycompanieslikedisplacedresidentsmightopttorelocate.Naginsaidhehopedtheywouldstay."Butiftheydon’t"hesaidwithtypicalglibness"I’llsendthemapostcard."ThecommentmighthavebeenwrittenoffasoneofNagin’smanyverbalmissteps.Butinthemonthsthatfollowedthewarningsturnedoutinmanycasestobetrueevenasthecity’srebuildingeffortlanguishedinfrastructurerepairslimpedalongthestatereimbursementprogramfordamagedhomesfalteredandtheNewOrleans’infamouscrimeratemadeasickeningcomeback. NewOrleans"wasn’tconsideredagreatcityfordoingbusinessbeforethestorm.Peoplewerealwaysdribblingout"saysPeterRicchiutiaprofessorofeconomicsatTulaneUniversity.Whilemanyofthecompaniesthatmadeitthroughthestormcouldstandtobenefitfromthecity’srecoveryhesaysKatrinamayhavehastenedthelossofhigh-payingenergyjobs."We’relosingthewhite-collarjobsandkeepingtheblue-collarjobs"hesays."We’rebecomingmuchmoreofablue-collaroilindustry." OneofthelatestexamplesisChevronCorp.whichisbuildingnewofficesinthenorthernsuburbs40milesnorthofthecityacrossLakePontchartrainandplanstotransfer550employeesfromNewOrleanstoCovingtonbytheendoftheyear.Thatwouldtakewell-paidpeopleoutofdowntownNewOrleansamovethatwillimpactthecentralbusinessdistrict’seconomy."WemadethedecisioninMay2006whenouremployeesweremakingimportanthousingdecisions"saysQiWilsonaChevronspokesperson.Thecompanylikemanyemployeesdecidedthenorthshoreofferedbettersecurityshouldanotherhurricanestrikealongwithfewerofthepost-Katrinaheadachesthatstillplaguethecity.Themove"willmakeiteasiertoretainthetalentwehaveandtoattractnewtalent"Wilsonsays. AccordingtoWilsonChevronintendstotransferitsemployeeschieflyto
实验研究的不断深入进而形成理论的过程实际存在着三个不同水平的发展阶段这三个阶段是
Druguseisrisingdramaticallyamongthenation’syouthafteradecadeofdecline.From1993to1994marijuanauseamongyoungpeople1from12to17jumped50percent.Oneinfivehighschoolseniors2marijuanadaily.MonitoringtheFuturewhich3studentdruguseannuallyreportsthatnegativeattitudesaboutdrugshavedeclinedforthefourthyearinarow.4youngpeopleseegreatriskinusingdrugs.Mood-alteringpharmaceuticaldrugsare5newpopularityamongyoungpeople.Ritalin6asadietpillinthe1970sandnowusedto7hyperactivechildrenhasbecomea8drugoncollegecampuses.Acentralnervoussystem9Ritalincancausestrokeshypertensionandseizures.RohypnolproducedinEuropeasa10tranquilizerlowersinhibitionsandsuppressesshort-termmemorywhichhasledtosomewomenbeingrapedbymentheyaregoingoutwith.11takenwithalcoholitseffectsaregreatly12.RocksingerKurtCobaincollapsedfroman13ofRohypnolandchampagneamonthbeforehecommitted14in1994.InFloridaandTexasRohypnolhasbecomewidelyabusedamongteenswhoseethedrugasalessexpensive15formarijuanaandLSD.Alcoholandtobaccouseisincreasingamongteenagers16youngeradolescents.Eachyearmorethanonemillionteensbecomeregularsmokers17theycannotlegallypurchasetobacco.By12thgradeoneinthreestudentssmokes.In1995oneinfive14-year-oldsreportedsmokingregularlya33percentjump181991.Drinkingamong14-year-oldsclimbed50percentfrom1992to1994andallteensreportedsubstantialincreasesin19drinking.In1995oneinfive10thgradersreportedhavingbeendrunkinthepast30days.Two-thirdsofhighschoolseniorssaytheyknowa20withadrinkingproblem. Readthefollowingtext.ChoosethebestwordsforeachnumberedblankandmarkABCorDonANSWERSHEET1.5
简述不同类型实验的共同特点
Druguseisrisingdramaticallyamongthenation’syouthafteradecadeofdecline.From1993to1994marijuanauseamongyoungpeople1from12to17jumped50percent.Oneinfivehighschoolseniors2marijuanadaily.MonitoringtheFuturewhich3studentdruguseannuallyreportsthatnegativeattitudesaboutdrugshavedeclinedforthefourthyearinarow.4youngpeopleseegreatriskinusingdrugs.Mood-alteringpharmaceuticaldrugsare5newpopularityamongyoungpeople.Ritalin6asadietpillinthe1970sandnowusedto7hyperactivechildrenhasbecomea8drugoncollegecampuses.Acentralnervoussystem9Ritalincancausestrokeshypertensionandseizures.RohypnolproducedinEuropeasa10tranquilizerlowersinhibitionsandsuppressesshort-termmemorywhichhasledtosomewomenbeingrapedbymentheyaregoingoutwith.11takenwithalcoholitseffectsaregreatly12.RocksingerKurtCobaincollapsedfroman13ofRohypnolandchampagneamonthbeforehecommitted14in1994.InFloridaandTexasRohypnolhasbecomewidelyabusedamongteenswhoseethedrugasalessexpensive15formarijuanaandLSD.Alcoholandtobaccouseisincreasingamongteenagers16youngeradolescents.Eachyearmorethanonemillionteensbecomeregularsmokers17theycannotlegallypurchasetobacco.By12thgradeoneinthreestudentssmokes.In1995oneinfive14-year-oldsreportedsmokingregularlya33percentjump181991.Drinkingamong14-year-oldsclimbed50percentfrom1992to1994andallteensreportedsubstantialincreasesin19drinking.In1995oneinfive10thgradersreportedhavingbeendrunkinthepast30days.Two-thirdsofhighschoolseniorssaytheyknowa20withadrinkingproblem. Readthefollowingtext.ChoosethebestwordsforeachnumberedblankandmarkABCorDonANSWERSHEET1.9
Druguseisrisingdramaticallyamongthenation’syouthafteradecadeofdecline.From1993to1994marijuanauseamongyoungpeople1from12to17jumped50percent.Oneinfivehighschoolseniors2marijuanadaily.MonitoringtheFuturewhich3studentdruguseannuallyreportsthatnegativeattitudesaboutdrugshavedeclinedforthefourthyearinarow.4youngpeopleseegreatriskinusingdrugs.Mood-alteringpharmaceuticaldrugsare5newpopularityamongyoungpeople.Ritalin6asadietpillinthe1970sandnowusedto7hyperactivechildrenhasbecomea8drugoncollegecampuses.Acentralnervoussystem9Ritalincancausestrokeshypertensionandseizures.RohypnolproducedinEuropeasa10tranquilizerlowersinhibitionsandsuppressesshort-termmemorywhichhasledtosomewomenbeingrapedbymentheyaregoingoutwith.11takenwithalcoholitseffectsaregreatly12.RocksingerKurtCobaincollapsedfroman13ofRohypnolandchampagneamonthbeforehecommitted14in1994.InFloridaandTexasRohypnolhasbecomewidelyabusedamongteenswhoseethedrugasalessexpensive15formarijuanaandLSD.Alcoholandtobaccouseisincreasingamongteenagers16youngeradolescents.Eachyearmorethanonemillionteensbecomeregularsmokers17theycannotlegallypurchasetobacco.By12thgradeoneinthreestudentssmokes.In1995oneinfive14-year-oldsreportedsmokingregularlya33percentjump181991.Drinkingamong14-year-oldsclimbed50percentfrom1992to1994andallteensreportedsubstantialincreasesin19drinking.In1995oneinfive10thgradersreportedhavingbeendrunkinthepast30days.Two-thirdsofhighschoolseniorssaytheyknowa20withadrinkingproblem. Readthefollowingtext.ChoosethebestwordsforeachnumberedblankandmarkABCorDonANSWERSHEET1.1
假定一位研究者想从事开放课堂教学对中学生成绩影响的研究需要对哪些术语下操作性定义请举一些对这些术语下操作性定义的例子
欲表示离散型的数据资料首选的统计图类型是
Druguseisrisingdramaticallyamongthenation’syouthafteradecadeofdecline.From1993to1994marijuanauseamongyoungpeople1from12to17jumped50percent.Oneinfivehighschoolseniors2marijuanadaily.MonitoringtheFuturewhich3studentdruguseannuallyreportsthatnegativeattitudesaboutdrugshavedeclinedforthefourthyearinarow.4youngpeopleseegreatriskinusingdrugs.Mood-alteringpharmaceuticaldrugsare5newpopularityamongyoungpeople.Ritalin6asadietpillinthe1970sandnowusedto7hyperactivechildrenhasbecomea8drugoncollegecampuses.Acentralnervoussystem9Ritalincancausestrokeshypertensionandseizures.RohypnolproducedinEuropeasa10tranquilizerlowersinhibitionsandsuppressesshort-termmemorywhichhasledtosomewomenbeingrapedbymentheyaregoingoutwith.11takenwithalcoholitseffectsaregreatly12.RocksingerKurtCobaincollapsedfroman13ofRohypnolandchampagneamonthbeforehecommitted14in1994.InFloridaandTexasRohypnolhasbecomewidelyabusedamongteenswhoseethedrugasalessexpensive15formarijuanaandLSD.Alcoholandtobaccouseisincreasingamongteenagers16youngeradolescents.Eachyearmorethanonemillionteensbecomeregularsmokers17theycannotlegallypurchasetobacco.By12thgradeoneinthreestudentssmokes.In1995oneinfive14-year-oldsreportedsmokingregularlya33percentjump181991.Drinkingamong14-year-oldsclimbed50percentfrom1992to1994andallteensreportedsubstantialincreasesin19drinking.In1995oneinfive10thgradersreportedhavingbeendrunkinthepast30days.Two-thirdsofhighschoolseniorssaytheyknowa20withadrinkingproblem. Readthefollowingtext.ChoosethebestwordsforeachnumberedblankandmarkABCorDonANSWERSHEET1.13
Druguseisrisingdramaticallyamongthenation’syouthafteradecadeofdecline.From1993to1994marijuanauseamongyoungpeople1from12to17jumped50percent.Oneinfivehighschoolseniors2marijuanadaily.MonitoringtheFuturewhich3studentdruguseannuallyreportsthatnegativeattitudesaboutdrugshavedeclinedforthefourthyearinarow.4youngpeopleseegreatriskinusingdrugs.Mood-alteringpharmaceuticaldrugsare5newpopularityamongyoungpeople.Ritalin6asadietpillinthe1970sandnowusedto7hyperactivechildrenhasbecomea8drugoncollegecampuses.Acentralnervoussystem9Ritalincancausestrokeshypertensionandseizures.RohypnolproducedinEuropeasa10tranquilizerlowersinhibitionsandsuppressesshort-termmemorywhichhasledtosomewomenbeingrapedbymentheyaregoingoutwith.11takenwithalcoholitseffectsaregreatly12.RocksingerKurtCobaincollapsedfroman13ofRohypnolandchampagneamonthbeforehecommitted14in1994.InFloridaandTexasRohypnolhasbecomewidelyabusedamongteenswhoseethedrugasalessexpensive15formarijuanaandLSD.Alcoholandtobaccouseisincreasingamongteenagers16youngeradolescents.Eachyearmorethanonemillionteensbecomeregularsmokers17theycannotlegallypurchasetobacco.By12thgradeoneinthreestudentssmokes.In1995oneinfive14-year-oldsreportedsmokingregularlya33percentjump181991.Drinkingamong14-year-oldsclimbed50percentfrom1992to1994andallteensreportedsubstantialincreasesin19drinking.In1995oneinfive10thgradersreportedhavingbeendrunkinthepast30days.Two-thirdsofhighschoolseniorssaytheyknowa20withadrinkingproblem. Readthefollowingtext.ChoosethebestwordsforeachnumberedblankandmarkABCorDonANSWERSHEET1.17
Druguseisrisingdramaticallyamongthenation’syouthafteradecadeofdecline.From1993to1994marijuanauseamongyoungpeople1from12to17jumped50percent.Oneinfivehighschoolseniors2marijuanadaily.MonitoringtheFuturewhich3studentdruguseannuallyreportsthatnegativeattitudesaboutdrugshavedeclinedforthefourthyearinarow.4youngpeopleseegreatriskinusingdrugs.Mood-alteringpharmaceuticaldrugsare5newpopularityamongyoungpeople.Ritalin6asadietpillinthe1970sandnowusedto7hyperactivechildrenhasbecomea8drugoncollegecampuses.Acentralnervoussystem9Ritalincancausestrokeshypertensionandseizures.RohypnolproducedinEuropeasa10tranquilizerlowersinhibitionsandsuppressesshort-termmemorywhichhasledtosomewomenbeingrapedbymentheyaregoingoutwith.11takenwithalcoholitseffectsaregreatly12.RocksingerKurtCobaincollapsedfroman13ofRohypnolandchampagneamonthbeforehecommitted14in1994.InFloridaandTexasRohypnolhasbecomewidelyabusedamongteenswhoseethedrugasalessexpensive15formarijuanaandLSD.Alcoholandtobaccouseisincreasingamongteenagers16youngeradolescents.Eachyearmorethanonemillionteensbecomeregularsmokers17theycannotlegallypurchasetobacco.By12thgradeoneinthreestudentssmokes.In1995oneinfive14-year-oldsreportedsmokingregularlya33percentjump181991.Drinkingamong14-year-oldsclimbed50percentfrom1992to1994andallteensreportedsubstantialincreasesin19drinking.In1995oneinfive10thgradersreportedhavingbeendrunkinthepast30days.Two-thirdsofhighschoolseniorssaytheyknowa20withadrinkingproblem. Readthefollowingtext.ChoosethebestwordsforeachnumberedblankandmarkABCorDonANSWERSHEET1.11
ItmaynothavegeneratedmuchinterestoutsideenergyandinvestmentcirclesbutarecentcommentbyTidewaterInc.presidentDeanTaylorsentearthquakesthroughtheNewOrleansbusinesscommunity.InJuneTaylortoldtheHoustonChroniclethattheinternationalmarineservicescompany—theworld’slargestoperatorofshipsservingtheoffshoreoilindustry—wasseriouslyconsideringmovingitsheadquartersalongwithscoresofadministrativejobsfromtheCrescentCitytoHouston."Wehavealotofsympathyforthecity"Taylorsaid."Butourshareholdersdon’tpayustohavesympathy.Theypayustohaveresultsforthem." Itwasthelastthingthehurricane-scarredcityneededtohear.Tidewaterwasfoundedherealittlemorethan50yearsagoandkeptitsmainofficeinNewOrleansthroughouttheoilbustofthe1980sandthefollowingdecadesofindustryconsolidationwhendozensofenergyfirmsallbutabandonedNewOrleansforgreenerpasturesontheTexascoast.InthenearlytwoyearssinceHurricaneKatrinaravagedthecitythepaceofexodushasaccelerated.complicatingNewOrleans’haltingrecovery;accordingtothelocalbusinessweeklyCityBusinessthemetropolitanareahaslost12ofthe23publiclytradedcompaniesheadquarteredheretakingwhite-collarjobscorporatecommunitysupportandsorelyneededtaxpayerswiththem—andthreateningtoleavethecityevenmoredependentonatourismbasedeconomythanitwasbeforethestorm. Makingmattersworsesomeobserverssayisthecityleadership’sapparentindifference10thebloodletting.JustweeksafterHurricaneKatrinainAugust2005MayorRayNaginthenintheveryearlystagesofaheatedreelectionbiddismissedwarningsthatmanycompanieslikedisplacedresidentsmightopttorelocate.Naginsaidhehopedtheywouldstay."Butiftheydon’t"hesaidwithtypicalglibness"I’llsendthemapostcard."ThecommentmighthavebeenwrittenoffasoneofNagin’smanyverbalmissteps.Butinthemonthsthatfollowedthewarningsturnedoutinmanycasestobetrueevenasthecity’srebuildingeffortlanguishedinfrastructurerepairslimpedalongthestatereimbursementprogramfordamagedhomesfalteredandtheNewOrleans’infamouscrimeratemadeasickeningcomeback. NewOrleans"wasn’tconsideredagreatcityfordoingbusinessbeforethestorm.Peoplewerealwaysdribblingout"saysPeterRicchiutiaprofessorofeconomicsatTulaneUniversity.Whilemanyofthecompaniesthatmadeitthroughthestormcouldstandtobenefitfromthecity’srecoveryhesaysKatrinamayhavehastenedthelossofhigh-payingenergyjobs."We’relosingthewhite-collarjobsandkeepingtheblue-collarjobs"hesays."We’rebecomingmuchmoreofablue-collaroilindustry." OneofthelatestexamplesisChevronCorp.whichisbuildingnewofficesinthenorthernsuburbs40milesnorthofthecityacrossLakePontchartrainandplanstotransfer550employeesfromNewOrleanstoCovingtonbytheendoftheyear.Thatwouldtakewell-paidpeopleoutofdowntownNewOrleansamovethatwillimpactthecentralbusinessdistrict’seconomy."WemadethedecisioninMay2006whenouremployeesweremakingimportanthousingdecisions"saysQiWilsonaChevronspokesperson.Thecompanylikemanyemployeesdecidedthenorthshoreofferedbettersecurityshouldanotherhurricanestrikealongwithfewerofthepost-Katrinaheadachesthatstillplaguethecity.Themove"willmakeiteasiertoretainthetalentwehaveandtoattractnewtalent"Wilsonsays. Itcanbeinferredfromthefirstparagraphthat.
Druguseisrisingdramaticallyamongthenation’syouthafteradecadeofdecline.From1993to1994marijuanauseamongyoungpeople1from12to17jumped50percent.Oneinfivehighschoolseniors2marijuanadaily.MonitoringtheFuturewhich3studentdruguseannuallyreportsthatnegativeattitudesaboutdrugshavedeclinedforthefourthyearinarow.4youngpeopleseegreatriskinusingdrugs.Mood-alteringpharmaceuticaldrugsare5newpopularityamongyoungpeople.Ritalin6asadietpillinthe1970sandnowusedto7hyperactivechildrenhasbecomea8drugoncollegecampuses.Acentralnervoussystem9Ritalincancausestrokeshypertensionandseizures.RohypnolproducedinEuropeasa10tranquilizerlowersinhibitionsandsuppressesshort-termmemorywhichhasledtosomewomenbeingrapedbymentheyaregoingoutwith.11takenwithalcoholitseffectsaregreatly12.RocksingerKurtCobaincollapsedfroman13ofRohypnolandchampagneamonthbeforehecommitted14in1994.InFloridaandTexasRohypnolhasbecomewidelyabusedamongteenswhoseethedrugasalessexpensive15formarijuanaandLSD.Alcoholandtobaccouseisincreasingamongteenagers16youngeradolescents.Eachyearmorethanonemillionteensbecomeregularsmokers17theycannotlegallypurchasetobacco.By12thgradeoneinthreestudentssmokes.In1995oneinfive14-year-oldsreportedsmokingregularlya33percentjump181991.Drinkingamong14-year-oldsclimbed50percentfrom1992to1994andallteensreportedsubstantialincreasesin19drinking.In1995oneinfive10thgradersreportedhavingbeendrunkinthepast30days.Two-thirdsofhighschoolseniorssaytheyknowa20withadrinkingproblem. Readthefollowingtext.ChoosethebestwordsforeachnumberedblankandmarkABCorDonANSWERSHEET1.7
简述操作定义的作用
试比较不同取样方式的优点与不足
有一个健康教育工作者正在设计一项研究其目的是在于对六所城市中学生的饮食习惯进行调查饮食习惯涉及这样的一些因素如学生吃喝什么东西什么时候进食等 1假设决定使用访谈法对学生中的随机样本进行访谈请为该访谈设计3～4个样题 2你如何核对是否有粗心的或不诚实的答案
Sleepisafunnything.We’retaughtthatweshouldgetsevenoreighthoursanightbutalotofusgetbyjustfineonlessandsomeofusactuallysleeptoomuch.AstudyoutoftheUniversityofBuffalolastmonthreportedthatpeoplewhoroutinelysleepmorethaneighthoursadayandarestilltiredarenearlythreetimesaslikelytodieofstroke—probablyasaresultofanunderlyingdisorderthatkeepsthemfromsnoozingsoundly. Doctorshavetheirownspecialsleepproblems.Residentsarefamouslysleepdeprived.WhenIwastrainingtobecomeadoctoritwasnotunusualtowork40hoursinarowwithoutrest.Mostofustookitinstrideconfidentwecouldstilldeliverthehighestqualityofmedicalcare. Maybeweshouldn’thavebeensosureofourselves.AnarticleintheJournaloftheAmericanMedicalAssociationpointsoutthatinthemorningafter24hoursofsleeplessnessaperson’smotorperformanceiscomparabletothatofsomeonewhoislegallyintoxicated.Curiouslysurgeonswhobelievethatoperatingundertheinfluenceisgroundsfordismissaloftendon’tthinktwiceaboutoperatingwithoutenoughsleep. "Icouldtellyouhorrorstories"saysJayaAgrawalpresidentoftheAmericanMedicalStudentAssociationwhichrunsawebsitewhereresidentscanpostanonymousanecdotes.Someareterrifying."Iwasoperatingafterbeingupforover36hours"onewrites."Iliterallyfellasleepstandingupandnearlyfaceplantedintothewound." "PracticallyeverysurgicalresidentIknowhasfallenasleepatthewheeldrivinghomefromwork"writesanother."Iknowofthreewhohavehitparkedcars.Anotherhitaconveniencestoreontheroadsidegoing[105km/h]." "Yourownpatientshavebecometheenemy"writesathird"becausetheyaretheonethingthatstandsbetweenyouandafewhoursofsleep." Agrawal’sorganizationissupportingthePatientandPhysicianSafetyandProtectionActof2001introducedlastNovemberbyRepresentativeJohnConyersJr.ofMichigan.ItskeyprovisionsmodeledonNewYorkState’sregulationsincludean80-hourworkweekanda24hourwork-shiftlimit. Mostdoctorshoweverresistsuchinterference.Dr.CharlesBinkleyaseniorsurgeryresidentattheUniversityofMichiganagreesthatsomethingneedstobedonebutbelieves"doctorsshouldbeboundbytheirconsciencenotbythegovernment." TheU.S.controlsthehoursofpilotsandtruckdrivers.Butuntilsuchasystemisinplacefordoctorspatientsareontheirown.Ifyou’reworriedaboutthepeopletreatingyouyoushouldfeelfreetoaskhowmanyhoursofsleeptheyhavehad.Doctorsfortheirparthavetogiveuptheirposeofinfallibilityandgettheresttheyneed. Itcanbeinferredfromthepassagethat
简述样本选择的基本要求
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