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LI Chang pin 《上海大学学报(英文版)》1999,3(3):248-250
1 Introduction TheKSequationinonespatialdimensionreadsas ut+uxxxx+uxx+uux=0, x∈(-l2,l2),t>0,u(x,0)=u0(x).(1.1)Weemphasizethelperiodicboundarycondition,lbeingthesizeofatypicalpatterncell u(x+l,t)=u(x,t).(1.2) TheKSequationarisesindifferentphysic… 相似文献
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《语文世界(高中版)》2000,(5)
Edward ThomasBright clouds of MayShade half the pond.Beyond,All but one bayOt emeraldTall reedsLike criss-cross bayonetsWhere a bird once called,Lies bright as the sun.No one heeds.The light wind fretsAnd drifts the scumOf may- blossom.Till the moorhen callsAgainNaug… 相似文献
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THE POLYMERIZATION OF METHYL METHACRYLATE WITH A NEW TIN-BRIDGED YTTROCENE/Al(i-Bu)_3 总被引:1,自引:0,他引:1
INTRODUCTIONSincethepolymerizationofmethylmethacrylate(MMA)withrareearthcatalystswasrealizedforthefirsttimein1991,aseriesofnewrareearthcatalystsystemssuchasNd(P204)3/Al(iBu)3,Nd(P204)3/Al(iBu)3/CCl4,Nd(Oct)3/Al(iBu)3,Ln(acac)3/BuMgCl,Y(acac)3/Al(iBu)3/BuLi,Nd(naph)3/BuLi,andNd(O… 相似文献
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听力部分1 听对话 ,并圈出对话中出现的词汇 (斜体为磁带录音内容 ) (1 )A :Whereismykite,mummy?B :Idon’tknowexactly.a .bike b .kite c .ride(2 )A :Now ,let’shaveatest.B :It’sagoodidea .a .test b .rest c.west(3)A :Wheredoesyourgrandfatherlivenow ?B :Oh,helivesinShanghainow .a .leaves b .loves c.lives2… 相似文献
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听力部分1 听对话 ,并圈出对话中出现的词汇 (斜体为磁带录音内容 ) (1 )A :Whereismykite,mummy?B :Idon’tknowexactly.a .bike b .kite c .ride(2 )A :Now ,let’shaveatest.B :It’sagoodidea .a .test b .rest c.west(3)A :Wheredoesyourgrandfatherlivenow ?B :Oh,helivesinShanghainow .a .leaves b .loves c.lives2… 相似文献
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LinZumei(ForeignLanguageDepartmentofDandongTeachers′ColegeDandong118003)Abstract:Asacriticalrealisticwriter,JackLondonwasbold... 相似文献
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利用课文中的插图、简笔画等学习词汇。T :PleaseLookatthepic ture.Thisisapictureofthe greatforestinsouthAmerica.Whatcanyouseeinthepicture,Ss?Ss:Somestudents,sometrees,ariverandaboat.T:Good.WhoiscookingsupperSA?SA :Maybetheir……T :Yes.Heistheirguide.Heisavillagerneartheforest.… 相似文献
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INTRODUCTIONATMhasgreatsuperiorityincertainaspects,suchasresourceallocationflexibility ,qualityofserviceguaranteeing ,integratedtrafficsupport ing ,etc .ATMhasbeenadoptedbyInternation alTelecommunicationUnion (ITU)astheex changeandmultiplexingtechniquesofth… 相似文献
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1 —Whichofthetwotieswillyoutake ?—I’lltake ,forachangesome times.A .either B .both C .neither D .all2 .Thepolicecouldn’tseewhichthecarwent.A .path B .way C .street D .road3.Thebusdriverwasbadlyinbothlegsinthetrafficaccident.A .damaged B .woundedC .injuredD .destroye… 相似文献
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在准备写第五册《狐狸与葡萄》一课教案时,我心里十分苦恼,因为这课虽然有趣,但生词特别多,孩子们不大容易掌握。 后来灵机一动,我把课文的5个句子分为有情景意义的四个部分。它们是:一、A fox sees some grapes.二、He is eager to rach them。三、But thevine is hanging high up in a tree,He can’t get them.四、“They’re sourgrapes”。he bets。上第一节课时,我给学生讲了一下故事情节和道理,然后… 相似文献
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MostAmericanseatbreakfastandlunchquickly,unlessitisabusinessluncheon(午宴)orfamilyoccasion(场合).AndthefavouritefastfoodintheUnitedStatesisthehamburger.Itseemsimpossible,but34,000,000,000hamburgersareeatenayear.Thisisenoughtomakealineofhamburgersaround… 相似文献
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Atpresent,Bi(2 2 2 3) /Agmultifilamentarysuper conductingtapesareconsideredthemostsuitablehightemperaturesuperconductors (HTS)tobeappliedtosu perconductingmagneticenergystorage(SMES) ,super conductingmagnets,superconductingfaultcurrentlim itersandcurrentleads,et… 相似文献
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Alberto Rocha TONG Fu 《上海大学学报(英文版)》1999,3(4):293-298
1 Introduction Breastcancerisoneofthemostmalignantdiseases,especiallyforwomen.Anearlydetectioncansavelives,achievedbyearlydetectionwithmammograms.Itisanintensivetaskfortheradiologistbecausemultiplereadingsofasinglemammogramarenecessaryinordertoincre… 相似文献
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ANewFastAlgorithmforComputing2DDiscreteCosineTransformWuHongwen(吴红文)(ThermalEnergyEngineeringResearchInstitute,SoutheastUniv... 相似文献
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ISTHENOVELDEAD ?Therehasbeennolackofpropheciesofthedeathofthenovelsincethebeginningofthe2 0thcentury .Manyprestigiouscritics,suchasT .S .Eliot,OrtegaY .Gasset,AlbertoMoraviaandCyrilConnolly ,haverelentlesslypronounceddeathsentenceonthenovel.Althoughthousandso… 相似文献