DDDDD1DDDDDDDDDDD0DDDDDDDDDDDDODDDDDD<2DDDDDDDDDDDDDDDDDDDAD2D2DDDDMQ{DD□□□□□□□□□□□□□DDDDDDDDDDD1DDDDDDDDDDDDDDD()BD3DM{DDPD{DDQD{DDDDIO50DDDDCDDDDDD7DDDD0DD1DDDD}D}D}DCD4D}DDD5DDDDDDD()ADMDMPCDMPDQ3DDDDDDDDDD{xDx2Q2D0}DDDDDDDDD{(1D2)}D{(2D1)}DDDDDDD{4D5}D{5D4}DDDDDDD{4D5}D{5D4}DDDDDDDDDMD{(xDy)DBDDD4DDDDDDDDDADDDDDDDDCDDDDDDDDDDD5DDDMD{mDZ}DD()ADxDyDM6DDDDDDDD{xDRDmD2kDkDZ}DXQBDxDyDXMDPDDDDDDDDDADMDBDMDCDMDDDMDDDDDD7DDDD8DDD9DDDDDBDMDPDQDDMDMQxyD0DxDRDyDR}DDDDDDDDDBDDDDDDDDDDDDDDDDDDDDDCDxD1DkDyDY)Z}DYD{yDyD4kDDDxDy 纟 M1DkDx2D0.01D0}DPD{xDx2D0}{(xDy)DyDx2D1DxDR}DPD{(xDy)DxDy2D{yDyDt2Q1DtDR}DPD{tDtD(yD1)2 口 1DyDR}{xDxD2kDkDZ}DPD{xDxD4kD2DkDZ}1DxDR}10DDDDDDxDDxDDxDDDDDDDDDDDDDD{3DxDx2D2x}DDxDDDDDDDAD{2D4D6}叮 aDADD电 ODDDD6DaDADDDaDDDND0NDD30.5ZD<2RD.QDDD3|NDDDv'3D-□ZD11DDDDx2DmxDnD0(mDnDR)DDDD{D2DD1}DDmDDnDD{2D4D6D8D10D12}D{2D3D4}{12345}{3,4,5,6,7}DD18DDADDDD{2D3Da2Q2aD3}DBDDDD{aD3D2}DDDD5DADD5 纟 BDaDADDADDDDDDDDD12DDDDAD{xDx2Q(aD1)xDbD0}DDDDDDDDa 叮 aDDbDD'x+y=113DDDD 十 y+z=2DDDDDz+x=314DDDDDPD{OU1D2D3D4}DQD{xDxDabDaDbDPDaDb}DDDDDDD旳 QDD15DDDDDDDDDDDDD16DDDDAD{D2DD1DOD1}DDDBD{x;DxDDyDDyDA}DDBDDDDDDD17DDDAD{DDDD1DDD40DDDDDDDDDD}DDDDDDDDDDDDDDDDDDDDaDDD19DDDDADDDDD1ADD(1)D2DADDAD(2)DDADDDDDDDDDDDDD1(3)DDD1——wADaaDDDDDaDRDDADDDDDaDDDDDDADDDDDDDDDaDDDDDADDDDDDDDDDDaDDDD20DDDDDAD{xDax2D3xD2D0}DDD21DDDDDDDDDDDDDDD9DA={xGNIGN}；9-x9DB={GNIxGN};9-xDCE{yDy 叮 x2Q6DxDNDyDN}DDDD{(xDy)Dy 叮 x2Q6DxDNDyDN}DpDEQ{xI 二 x,p+q 二 5,pGN,qGN*}・q22DDDDDAD{pDx2Q2(pDl)xU1D0DxDR}DDDDBD{yDyD2xD1DxDA}DODDBDDDDDDDDDDDDD1}DDDDDDDDD{(xDy)DxDy2D1D1DyDR}D1DDMQ{yDyD1}DPD{tDt7D28DxD3DxD0DxDD2DD1D0D1DDxDDyDDDxD2D1D0D1DA2DB3DC4DD5DA6DCDDDDDDADDMQ©DPD{0}DDDDDDDDDMQ{(xDy)DyDx2Q1D1DxDR}DPDCDDyDt2Q1D1DtD(yD1)2 口 1D1DDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDx 丰 3,DDDDDDDDDDDDDDx2—2x 丰 x.DDDxD3DxD0DxDD1D9D2D410DDDDDDDD电 DDDDDD电电 D11DmD3DnD2D1112D a—DbDDDDDDDDDDx2D(a1)xDbD0DDDDxDaDDA3911(aD1)2D4bD0 叩DxDaDDDDDDa2D(aD1)aDbD0DDDDDDDDa— 3，“_913D {(1D...
