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1.
INTRODUCTIONHeterodinuclearcomplexesareofgreatinter estforthestudyofsynergisticeffectsfoundinbimetalliccatalysis(Dombek ,1 985;JnLingetal.,1 993 ;Mccollumetal.,1 996) .Moreandmoresyntheticrouteshavebeenreportedinthelastdecade(Harteretal.,1 989;Scottetal.,1 993 ;Diamondetal.…  相似文献   

2.
AThisseemstobeasurprisetodaythatacomputer 1 .canmakethebestdecisionaboutmatchtheright2 .manwiththerightwoman .Mr.WalkerMissDunfieldaresuch 3.acouple(夫妇 ) .Whentheyfirstmetwith ,theydidn’thavemuch 4.totalkofsinceeverythingwerewrittenontheircards . 5 .Theyaresoperfe…  相似文献   

3.
ItwasMonday .MrsSmith’sdogwashungry ,buttherewas  1 meatinthehouse .MrsSmithtookapieceofpaperand  2  ,“Givemydoghalfapoundofmeat.”Thenshegavethepieceofpapertoherdogandsaid ,“  3 thistothebutcher (卖肉人 ) ,hewillgiveyour  4 today .”Thedogtookthepieceofpaperand  5 tot…  相似文献   

4.
SomeonestoppedMrHuntwhilehewaswalkinginthestreet.HefounditwasMrBrown ,oneofhisoldf  1  .Theywerebothhappybe causetheydidn ts  2 eachotherforyears .MrHuntaskedMrBrowntodinnerandhea  3  .MrHunt swifebroughtsomem  4 andvegeta blesintheshop .Theyweretalkinginthesit…  相似文献   

5.
INTRODUCTIONKunlunShanlocatedatthejunctureofEur asiaandGondwanaisaveryimportantsubjectingeologicalresearch (Fig. 1 ) .ManygeologistsconductedresearchesinWesternKunlunShan(Panetal.,1 990 ,1 992 ,1 995,1 996;YaoandHsu ,1 994 ;Lietal.,1 996;Dingetal.,1 996;Matteetal.,1 996) .Triassicstrata…  相似文献   

6.
1 Introduction IntheimplementationofCIMSinenterprises,thedevelopmentoftheCAD/CAMtechnologyandtheap pearanceofmatureCAD/CAMsoftwareprovidereliableandefficientdesigntoolsfortheexploitationanddevel opmentofproducts.UGII (aCAD/CAMsoftwareofEDScorporation)hasb…  相似文献   

7.
1 .IntroductionInInnerMongoliaAutonomousRegion ,moreandmoreMongolianstudentsbegintolearnEn glishintherecentyearsasaforeignlanguage (orasathirdlanguage)atcollegesanduniversities.Beforetheygotocollege,mostofthemhaven’tlearnedEnglishbyrestrictionsofvariousco…  相似文献   

8.
INTRODUCTIONDuetotheinherentweaknessorbrittlenessofpiezoelectricceramics,thefractureofpiezo electricmaterialshasgainedconsiderableinter est.Mostpublishedworksdealtwithtwo dimen sionalstudyofcracksinpiezoelectricmaterials(Pak ,1 990 ;Suoetal.,1 992 ;ZhongandMegui…  相似文献   

9.
《中学教与学》2002,(12):45
第Ⅰ卷 (选择题 共 6 5分 )一、听力理解 (共 2 0分 ,每小题 1分 )A)在下列每小题内 ,你将听到一个句子并看到供选择的三个句子。找出与你所听到的那个在意思上最接近的答案1.A .Mydaughterisoldenoughtogotoschool.B .Mydaughteristooyoungtogotoschool.C .Mydaughterissoyoungthatshecangotoschool.2 .A .Theylookedforabiggerplacetolivein .B .Theyaskedustofind…  相似文献   

10.
1 Introduction Let (M ,g)beacompactorientedandconnectedRiemanianmanifoldofclassC∞ withoutboundary ;ΔbetheLaplacianactingon p formsforp =0 ,1,… ,n .Weknowthattheeigenvaluesformanon decreasingsequencedenotedbyspecp(M ) ={ 0≤λ0 ,p≤λ1,p≤… }whereeacheigenvalueisrepeatedmany…  相似文献   

11.
1 Introduction Uptonow ,themathematicalmodelsthatdescribetheparticlebehavioratsolidifyinginterfaceappearedalot[1~ 1 1 ],butnoneofthemissuitedfortheparticlebe havioratinterfacewiththeapplicationofexternalforcefield(e.g .EMFF) .Andwiththedevelopingofelec tromagn…  相似文献   

12.
INTRODUCTIONIntheManifestooftheCommunistParty,MarxandEnglesdeclared :“Inplaceoftheoldbourgeoissociety ,withitsclassesandclassan tagonisms,weshallhaveanassociation ,inwhichthefreedevelopmentofeachisthecondi tionforthefreedevelopmentofall”(Marx&En gels ,1 984 ) .…  相似文献   

13.
1 Introduction DavidHilbertposedtwentythreeproblemsinhisspeechattheInternationalCongressofMathemati ciansinParisin 190 0 .AtranslationofthetextofHilbertproblemsaspublishedintheBulletinoftheAmericanMathematicalSocietyof 190 3wasrestatedinProceedingoftheSympos…  相似文献   

14.
INTRODUCTIONMoleculardynamics (MD)simulationwasfoundtobeanimportantmethodologyforstudyofcondensedmatter (Tsuzukietal.,1 996) .Kiselevan  相似文献   

15.
INTRODUCTIONSemisyntheticanaloguesofthenaturallyoc curringpodophyllotoxin (1 )havedrawnmuchrenewedinterestinrecentyearsasaresultofthedevelopmentofetoposide(VP 1 6,2 )andtenipo side (VM 2 6,3 )asanticancerdrugs(Estapeetal.,1 982 ) .Mostofthestudiesonpodophyllo toxinsfo…  相似文献   

16.
Abstract : IncinerationasamethodofreducingMunicipalSolidWaste (MSW)volumeandrecoveryofener gyhasbeendevelopedgraduallyinChina .Moreattentionispaidonpolychlorinateddibenzo p dioxinsandpolychlorinateddibenzofurans (PCDD Fs)formedinMSWincinerationprocess .Thisp…  相似文献   

17.
INTRODUCTIONTheEmpiricalModeDecomposition (EMD)methodanditsHilbertSpectrumtechniqueisanewlydevelopedmethodfortimeseriesanalysis(Huangetal.,1 998) .Thismethodissuitableforanalyzingnonlinearandnon stationarypro cessbasedonanempiricalapproachandpro videsaprecis…  相似文献   

18.
1 Introduction A .M .W .Glasshasshownthefreel groupFη ofmostinfiniterankηtobeisomorphictoadoublytransi tivel subgroupofthel permutationgroupA(Q) [1,2 ] .S .H .McClearyhasprovedthatthefreel groupFηoffiniterankηhavepossessedafaithfully 2 transitiverep resentationonth…  相似文献   

19.
Mikeworkedinanofficeinasmalltown .Onedayhisboss (老板 )saidtohim ,“Mike ,IwantyougotoRichmond,toanofficethere ,toseeMrShute .Here’stheaddress.”MikewenttoRichmond .Whenhewalkedoutofthestation ,hethought,“Theofficeisn’tfarfromthestation .I’llfinditeasily .”Butaftera…  相似文献   

20.
Ⅰ .Blankfilling(汉语、英语答题均可 ) :( 10 % )1.AftertheMay 4thMovement,   proposedfaithfulnessandsmoothnessasthecriteriaoftransla tion .2 .LuXunand   introducedthroughtransla tionvolumesofOrientalandOccidentalworksofpro gressiveliterature.3 .By   wemeanrepeatingtheimportant…  相似文献   

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