简介:Withtherapiddevelopmentofsiliconchiptech-nology,web-basedinstruction(WBI)andcomputer-izedadaptivetesting(CAT)willbethenewtrendsinthefieldoflanguageteachingandtesting.Weassumethatonlywhenteachingandtestingsharethesameviewaboutthenatureoflanguageandlanguagelearn-ingcantestingexerciseabeneficialbackwasheffectonteaching.However,WBIandCATprovetobebasedonoppositetheoriesoflanguageandlanguagelearn-ing.WhileWBIbelievesinconstructivism,CATcor-respondstostructuralismandbehaviorism.Thissitu-ationplaceslanguagetestersinadilemma,foriftheyfollowthetrend,testingwillgoagainstteaching.ButiftheygiveupCAT,itisverydifficulttosubstituteanothertestingsystempossessingsomanyadvantages.ThispaperillustratesindetailwhyWBIandCATaretobecomethenewtrendsinteachingandtesting,ex-plainsclearlythediscrepancybetweenWBIandCATintheoryandtheirobjectivesandfinallyattemptstoprovideasolutiontohelpthelanguagetestersoutofthedilemma.
简介:Effectsofinformationasymmetryoncooperationintheprisoners’dilemmagameareinvestigated.TheamplitudeAisintroducedtodescribethedegreeofinformationasymmetry.ItisfoundthatthereexistsanoptimalvalueofamplitudeAoptatwhichthefractionofcooperationreachesitsmaximalvalue.Thereasonliesinthatcooperatorsonthetwo-dimensionalgridformlargeclustersatAopt.Inaddition,thetheoreticalanalysisintermsofthemeanfieldtheoryisusedtounderstandthiskindofphenomenon.Itisconfirmedthattheinformationasymmetryplaysanimportantroleinthedynamicsofthedilemmagamesofspatialprisoners.
简介:Forestpropertymortgageopensupanewfinancingchanneltorevitalizeforestresourcesassets,buttherearemanyrestrictionstoforestpropertymortgageloanfromrelevantlegalnormsandpracticesconcerningmortgageloanpolicies.Thepaperanalyzedtheinstitutionaldilemmaofforestpropertymortgageloaninaccordancewithrelevantlawsandpolicies,andthenmadetherecommendations,inordertoprovideameaningfulreferencetoperfectforestpropertymortgageloan.
简介:FertilityDeclineandPopulationGrowth:China'sDilemmaChinahasatpresentapopulationofover1.2billion,whichismorethanthepopulationof...
简介:在过去,为varicocelectomy的指示主要为有反常精液参数,在青少年的阴囊的hypotrophy/atrophy,或疼痛的不孕。为性腺机能减退的精索静脉曲张的外科的处理争论、辩论。最近,在文学的多重报告建议了那精索静脉曲张与性腺机能减退被联系,精索静脉曲张修理能增加睾丸激素层次。有hypogonadal症状的人应该有至少二个浆液睾丸激素层次。Microsurgicalvaricocelectomy可能为有有记录性腺机能减退的临床上摸得出的精索静脉曲张的人是有益的。在这评论,我们总结在浆液睾丸激素层次上连接精索静脉曲张到性腺机能减退和性机能障碍和修理的影响的最近的文学。我们执行了出版英语文学的搜索。使用的关键词是“;精索静脉曲张和hypogonadism”;并且“;精索静脉曲张外科和睾丸激素.”;我们在1998以后包括了出版研究。也,我们为精索静脉曲张修理不管指示在浆液睾丸激素水平在变化上评估了外科的效果。