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95 个结果
  • 简介:浙江省新课程改革要求高二学生学习一门新课程:通用技术(GeneralTechnology)。课程目的:培养基本技能,提高设计能力。课程要求:(1)能使用不同类型的常见工具,修理、设计和制作一些物品;(2)毕业前通过书面测试。

  • 标签: 浙江 课程改革 新课程 通用技术
  • 简介:精读课是英语专业最主要的课程。既要教会学生语音、语调、词汇、语法等语言知识,但更重要的是要综合训练他们的听、说、读、写译的语言能力和交际能力。因此,教师应该根据学生学习的不同阶段和教学的不同内容、课文选用的不同材料和体裁等因素采用不同的方法,激发学生学习热情,开发学生智力,培养他们的自学能力,才能有效改进精读课、提高教学质量。

  • 标签: 用不同方法 训练语言能力 激发学习热情 开启智力 培养自学能力 提高精读课教学效率
  • 简介:AtrainingclassonhumanrightsknowledgeforstatefunctionarieswasheldinBeijingfromDecember11-14,2007.Morethan40officialsrespon-sibleforthepublicityworkonhumanrightsfromthecentralandstateorgansandthecentralpressorganizationsattended.OrganizedbytheStateCouncilInfor-mationOffice,thiswasthefourthofitskindheldsofar.

  • 标签: 课程培训 公务员 人权问题 中国
  • 简介:这篇论文在一所突尼斯的大学里在一个机构处理功课Timetabling问题。我们介绍一个启发式的过程为任何节的每个分部的不同的组进行的所有讲课和教程构造一张可行时间表。我们用所有特定的难、软的限制的一张表描述timetabling问题。我们分别地用相应于讲课和教程的二进制变量的二个集合作为一套线性限制提出这个问题。这启发式在突尼斯为经济的学院和斯法克斯的管理科学的一个分部与真实数据被说明,并且产生时间表与手工地产生的那些相比。另一完整的节的结果证实了好质量求婚启发式什么时候与手工制作的答案相比。

  • 标签: 大学教育 课程表 整数规划 启发式搜索 突尼斯
  • 简介:Thispaperbrieflyaccountsacoursecalled"AGuidetoEnglishLearningStrategies",conductedbytheauthorsfortheEnglishmajorfreshmenattheiruniversity.Itsmaingoalwastoraisethelearners’"awarenessofstrategyuse"andhelpthelearnersmakebetteruseofsomelearningstrategies.IttackledsomecommonproblemswhichoftenmakeChineselearnersofEnglishlessefficientintheirlearning.Sug-gestionsareputforwardinthecourseevaluation,concerningmakingitmorepracticalandbeneficialforthelearners.

  • 标签: 白化
  • 简介:ExaminingChina'spopulationchangesinthepastthreedecadesdemonstratesthatChina'sdemographictransitionhasbeensuccessfullycompletedwithasplendidandzigzagpath.Thereareprofoundhistoricalexperiencesandlessons.ThispaperreviewsChina'sfertilitytransitionwhichisdividedintofourperiodsandarguesthatfertilitychangesarearesultoftheinteractionsbetweensocioeconomicdevelopment,fertilitybehaviorsandfertilitypolicies.Substantialresistancetothe'one-childpolicy'during1979to1984resultedinreboundingandfluctuatingfertility.Thebabyboomoccurredintheperiod1985to1991wasamanifestationoftheinherentlawsofdemographicdynamics,andsubsequentlyforcefulbirthcontrolwasagainmobilized.Theperiodfrom1992to1999witnessedlargedeclinesinfertilitywhichpenetratesthereplacementzone,showingthatChinawascompletingthefertilitytransition.China'sstabilizinglowfertilityandemergingpopulationstructuralissuessince2000callforcomprehensivewaysinaddressingthepopulationproblems.

  • 标签: 生育率 中国 课程 人口变化 人口结构 历史经验
  • 简介:Thenecessityofthetextbookcannotbeneglectedalthoughproblemsdoexistwithourteachingmateri-als.Asteachersitisimportantforustoevaluate,se-lectandadaptteachingmaterialstomeetourteachingandstudents’learningneedsinordertomaximizelearningpotentials.ThecasestudyofoneparticularEFLtextbookprovidesuswithmoreinsightsintotheunderstandingofourteachingmaterials.Theprocessofevaluatingtheteachingmaterialshelpsusmakede-cisionsinselectingtextbooks,aswellasallowingustoreflectonourteachingandlearningexperience.

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  • 简介:Thecourse-keepingcontrolofunderactuatedhovercraftwithtwoaftpropellerswasconsidered.Thecontroloftheheadingerrorandcross-trackerrorwasaccomplishedbytheyawtorquemerelyinthiscase.Thehovercraftdynamicmodelisnonlinearandunderactuated.AtfirsttheControllabilityofcourse-keepingcontrolforhovercraftwasproved,thenacourse-keepingcontrollawwasderivedthatkeepshovercraftheadingconstantaswellasminimizesthelateralmovementofhovercraft.Theproposedlawguaranteesheadingerrorandswayerrorallconvergetozeroexponentially.Simulationtestswerecarriedouttoillustratetheeffectivenessoftheproposedcontrollaw.Forfurtherresearch,thedisturbanceinfluencewouldbeconsideredinthedynamicequations.

  • 标签: 气垫船 非线性反馈控制 级数收敛 过程控制 数值模拟
  • 简介:Dreippingelectrolytesintosilicasol,gellingreactionwilloccur,Theresearchindicates:thisisacomplicatedphysicemistrycourse,whichconsistsofapre-reactionandapolymerizaion,Theformercontrolsthewholecourse,andinwhichelectroniclayersofthesol'sparticlesbe-comemoreandmorethiner,butwithincresingofthesolconcentration,itscontrolforcewillbediminished,tillthefast-coagulation,thegellingcousebecomeso-controlled,Thelatterisanin-finitepolymericchani-reaction.Theresultofgelatinationistoproduceaverybigplymericmolecule-gel,whichinvolvesinallspace,includesallwater,anditsmolecularweightisin-definitebig.Theresearhalsoindicates:thedy-namiccourseofthegellingcouldbedescribedquantitaivelybyanexperienceformula:lgt=-nlgc+B,Allofthecharacteristicvalueshavedefinitephysicalmeaning,Electronicvalueofthecontrary-inosisthebiggestinfluentialfactor,thenaturesofthecontrary-ionsandthenaturesofthesame-electronic-inoshaveafewinfluentialforcesonthecharacteristicvalues,Thetemperatureincreasingmakesthegellingreactionfast.

  • 标签: 动力学 硅溶胶 凝胶层 耐火材料