ࡱ> AC@_ Rbjbj2$bb 8=,iV$4. #######$%<(B#9#4$##0<mR#&$0V$~(^~(b~( !Za@40##aFV$~(/ : Ym_l^'Yf[f[MOerR'`Xf Zhejiang normal university dissertation original statement ,gNXf@bHTNvf[MOe/fb*NN(W[^c[ NۏLvxvz]\OSS_vxvzbg0e-NdNyr+RRNhlT"v0WeY NS+TvQNNbvQN:gg]~ShbdQǏvxvzbg0vQN T_[,gxvzv/TST@bZPv!.sGW](We-N\ONfnxvXfv^h:yN"a0,gN[hQaƋ0R,gXfvl_~g1u,gNbb0 I declare that the submitted dissertation is my research work and achievements carried out under the guidance of instructors. The paper exception to those which have special annotation and acknowledgements does not contain the research achievements of other people or other agencies have published or written. I have made a clear statement and expressed gratitude in the papers to other comrades who give me inspiration of this research and their contributions. I am fully aware of the legal outcome of this statement. \O~{ T/Author signature  eg/Date t^ g e f[MOecCgO(uXf Thesis use authorization statement ,gN[hQNYm_l^'Yf[ gsQOYu0O(uf[MOevĉ[ sSf[!h gCgOYuv^TV[ gsQ:gsQb:ggNev YpSNT5uP[ech AQegTP SNǑ(uq_pS0)pSbkbcI{KbkOX[0Glf[MOe0 TaYm_l^'Yf[SN(u N Te_(W N TZSO NSh0 OdevhQbRQ[0 O[vf[MOe(W[Tu[dkOS0 I fully understand the Zhejiang Normal University s regulations of reserving and using thesis, namely: the university has the right to reserve and submit the thesis including hard and soft copy to the relevant state authorities or institutions. All   ' ( 0 9 J W   n | wllllll`VLhq|hCJo(h|@h|@CJo(h|hB:CJaJo(h|hU>CJaJh|hU>CJaJo(h|hB:CJaJh|h5bCJo(h|hCJo(h|hCJo(h|h[CJo(hq|hq|CJo(h|h|@5CJo(h|h|@5CJh|h5CJ$aJ$o(h|h5CJ$aJ$o(h|h5b5CJ$aJ$o(  . r t v x z | $  da$gd  dgd*dVDWDT^*`gd| | WD`| gd|gdP@dgdE 0 0dWD`0gd| Xd`Xgd|  d` gdE 0 $da$gdE 0 * , . 0 2 4 B H L V Z p r t ɽ콐~seWIW=hAhA5CJ aJ h|hCy5CJ$aJ$o(h|h5CJ$aJ$o(h|h*5CJ$aJ$o(h*5CJ aJ o( hkCJo(h|hCJaJh|h5bCJaJo(h|CJaJo(h|hBCJaJo(h|hq|CJaJo(h|hCJaJo(h|hP@CJaJo(h|hCyCJaJo(h|hP@CJaJh|h*CJaJo( h*CJo(| ~ nprgdP@  dgdBC  0dWD`0gd| 0WD`0gd|gd*  XdWD`Xgd|  "dWD`"gd|  dgdE 0$a$gdA$  da$gd $ : J T X l  rtvùͯͯ딉~r~r~rrg\h|hPCJaJh|hACJaJh|h CJaJo(h|h CJaJh|hE CJaJ h*CJo(h|h:fCJo(h|h3xCJo(h|h`CJo(h|hJCJo(h|h$ CJo(h|hC >CJo(h|hI!CJo(h|hR ?CJo(h|hCJo(hq|hCJo($04>JNRTnpv>RTZj Flnprvїї苄}shq|hP@CJo( h*CJo( hd2CJo(h|hCJaJo(h|hPCJaJh|hzP&CJaJh|hDDCJaJo(h|hDDCJaJh|h CJaJUh|hE CJaJh|h CJaJo(h|hACJaJh|hPCJaJo(*ow the thesis is consulted and borrowed. The university can use photocopying, scanning and other means to preserve or assemble degree thesis. Agree University to publish and spread all or part of thesis in different media in different ways. Confidential degree thesis after decryption abides by this agreement. Author signature Supervisor s signature \O~{ T [^~{ T eg/Date t^ g e     v (2:DHJNX`rxz~h\Jjh\JU heCJo( hYCJo( hnCJo( hICJo( hq|CJo( hCJo(hq|hCJo( hBCJo(hP@hP@CJo( hP@CJ hCyCJo( hzP&CJo( hP@CJo(hP@hP@CJ$FHx|~gdG$  d`a$gdn  d`gdE 0 0182P. A!"#$%S b 2 0@P`p2( 0@P`p 0@P`p 0@P`p 0@P`p 0@P`p 0@P`p8XV~PJ_HmH nHsH tHJ`J cke $1$a$ CJKH_HaJmH nHsH tH$A`$ ؞k=W[SOFiF nfhUW{>={w][8^}ߟ|gxY?Zǿ=}/yPxPiD$J.1r21-؈cA_`fDZE@eK[P-|96Ei.k]0qP\]tq3N7to1sXD!RMJnS_pG ݤiiHtTt /2!Nloge^o} ]Y}œ0^c2}b`ٛH3$R&B/c`ҴoI"{e2`΋Mqa{4(F;\!;s}'dzu8&M D?\^"ܩބ01TpuD#nF#n_<*m 8zfQ6C&;bzGϓ~>{J0Emh=Ԅ+ Ξa>s$-, dP$2Hp E\*[aWYחm>Kz9kbUf*[ZIo:1͐-wY\!kGDyZ5\v0#Cw,-& g"!IsQ$)G57v$˲&Y*x%vY\lNר/= .Y|%l̦˧ldMPW63;<6 miGi Xk/!g@ ̊U( Z2_]Xѱ_S*cED/] ץ x7m6]u̒t[4d 7`Jm7ΝgJg>, u|xC,0ҝP!JBw ;Z.<A pT4@yBAВcUӳˊd SQseb}JݰIJwi =a=OO>)@?71oggo`:fղekpʣ2֌Nj8ǰD CB81e>nEeU}H]dm1iQ6褣g $  v |  @ @H 0(  0(  B S  ? OLE_LINK1 OLE_LINK2XXoo89:;<=")!(339*urn:schemas-microsoft-com:office:smarttagsState=*urn:schemas-microsoft-com:office:smarttags PlaceName=*urn:schemas-microsoft-com:office:smarttags PlaceType9*urn:schemas-microsoft-com:office:smarttagsplace =L)*-.12i9:39:599VCDY"7)Lo=>3lJo=>!U;Iwy/ S/:6DGuq jw Jr{ w S t]KuVLU($DJu$kGw7y/XQv;.":.qf{ q:=! 6U;IB";nMuVg5O ":.F|7G Dp4d!i(kcH=@jY2 ! ",adNLn=M$T>Jj39d3";.s|$ @bw!Z|$ >O'}>'ck(O)[kNM++!Z|$1"o3mDE/3F-T]p4jQ5Lkh5o36~=.F|7V#77@"Y47=w_C8g5z8z;9gB";L%Cz qB.aSBaT{.CL%C$m6DG D$D)mDE=M5>G/:kG.cHSBvHCfwq3Ik( t]Kh5^OcK_F[)LXU9P[kNMz<p[M_hpVN}>'/Oib:O"XU9P/3PS>CTaTelY>CT qBLU.srzW7@"YwCDYelYCZ#7_F[F-T]']AbxJ_=vw.aQ5 @bnMib3wck39dPS,adqfp[MpyfCflz;9g^OcKimg):qwQh/Oj1q jq3I@jLkNlSp3lz8$mVNLnSp5>G_hpd!i):q3".srR=}XQvQh=v:Oav{.Cw3wzWAbxR=}Y2 B*E^*I~wM ) i- ~? `E 3D4;&vEDmI!|!=!2"zP&Y'^>(K+E 0os1d25e9`0:l=C >U>R ?|@_/@dR@A:IAB BY6DE>HE$G J\J3L-LCQ1fQMRg"RmpRSRUTUGV,W2 XvX(Y4[X$\ ec]dshEFijLogo ss's1w3xCyQzq|s*~* G5bn`beJHDD*n#DB,gk"+SIcN]9Y3|pcTEiG*<6Kq3P0rJi:F"xH*B:a nP@IBY $[lIxi;[^BC!mY3P$ rzC:f>@99994@ UnknownG* Times New Roman5Symbol3. *Cx Arial;([SOSimSunACambria Math h?BRoot Entry F`mDData 1Table~(WordDocument2$SummaryInformation(0DocumentSummaryInformation88CompObjn  FMicrosoft Word 97-2003 ĵ MSWordDocWord.Document.89q