21南京中考数学试卷

).±~~~:I.*iit~~6:ln.~~mJ,.120'·~iitlf.ti8]1J120,.i*.~~~~~ff~~.f±~~-t_t'~1±*iit~...t:7C~.2.M~--~~~--.f±~~-t...tAA~~-%~~~~-~iit~~£~~*Affi~ft.~~~~2~~~-~iit~~ffl0.5~*~~@7.1~~~:ij;~{£~~-tJ1*iit~...t.3.~iiH~~&HmJfl2Bm~~~~~-t...tx-tm~~~~~~~.:fmiW1&ilh,iwffl~&:~-Ti$1§,~i*~ltft!!~~.~~Fi*a~&H:OO:JfJ0.5~*~~@7.1~~~~1£~~-t.t1¥-J~~~f.!L:.ii,1£;Itft!!f.!L:.ii~~-~:7[;~.4.f1=~&:·~:mm2Bm~f1=~,:tt:iwno~noWfl,m~1w~.-.i*a~(**~~6,J,~,tij:~J'~z,_,~12'·.f±tij!J,~.PJT~t±1~1m~~~~,·lti~-~£~ft~§~*~·••~~i*~n~~-R~:ti~1:E~~-tmmQ~...tl1.l\4:¥2021~6jj8S,31~~,C§¥fri2C1I~r!niftlKVfS1::f'J!W:~~~it11ZLS-t:EJ'IjlirJI1;7W'I!i~ffilm:i18ooooooooJfiH}(.JiH4$ic~l!7&~8oooooooo~A.8X108B.0.8X109C.8X109D.0.8X1010A.a2B.a3C.a5D.a9A.1,1,1B.1,1,8c.1'2,2D.2,2,24.:!~Jit~~Wff41¥JBt~7-J5;J,Bt,fJtl~D,:!~JitBtiBJ13:00,II'J-Bt~tli¥J~Wff4BtfBJ~8:00.,J,ssifll;J,U5HJ1J1£:!~Jitifll~WT:f4,:l@ffH§~f.J1£~§~:tmstrBJg,oo~17,oozJBJm~-~Bt~tl7HilJlii~,~1-Bt~tlPJIV.~:!~JitBtIBJA.10:00B.12:ooC.15:00l]jijl¥1~A.16l¥14?X::trli~2B.32l¥15IX:1J:Ji~±2C.~n7-J~~Bt,2l¥1nIX:1rtlU.iRnl¥1±\ll':::krm~'J'U~n7-l~~Bt.21¥Jn?X1r~~nl¥J~::krm~::k~$il\!ili~1JfCft:6Jf)D.18:00s.~~.~~*~~~-~~~~~-~~m.~~k~~rrcw~-~~)~~~~m~~-~~~oo~-~~~.~rr*HM~.~~*~~~~Wk%~~~~~*~m~~(~6!Mf)Aon)7.-(-2)=~;-l-21=~·s.~::r-tr~~;!k?J&m:~l*l~~scIJ!iJx~:~ttmm:~:JikA.yAXBXc(~ll!Mf)(~12!Mf)(~13!Mf),---...._12.~0~,AB:;Iik80895~.C:;likAB~rp,~,OCY:AB~,~D.~AB=Scm,CD=2cm,IJ!iJ00~$12:tJAem.IJ!iJS6Aac=~·14.i!llOO,FA,GB,HC,ID,IE::lik1ilt1~ABCDEEf{])'f-t§mJEf{]tJ]~,JWJLBAF+LCBG+LDCH+LEDI+LAEJ=.&.0,FD'DAcB(~14JW)(~15~)(~16~)15.i!llOO,1£12!llt1~ABCD9=',AB=BC=BD.-i&LABC=a,Y!ULADC=.&.Otl~aEf{J1-1::~J:t7fVj~).16.i!llOO,~OABCDm.8A5£B1HfiJE!fi(l!UOAB'C'D'Ef{]1ii:'fl,~l,\B'ft;(£BC_t,B'C'-'=5·CD5t-T,8E.;ffAB=3,BC=4,BB'=l,Y!UCE8f.J-Kjg.&..~,•~~'**~~11~~.~88~.-~~~~m~~-~~~.•~m~w~*.......t5t~JLi.iE~J.Itil~§.It~lltV~l17.(7)t)~::f~J:t1+2(x-1)~3,:Jf1£~$i!J_t7fVf-~~.2X18.(7)1-)~::tf;j¥x+1+1=x-1'20.(8)t)i!llOO,AC-'=5BD5t-T,80,OA=OD,LABO=LDCO,E7gBC_g-K~_t-AL:ii,8Ef'FEF//CD,5tBD8f.J_g-K~-T,8F.Cl):l:iiELAOB(/)6DOC;(2);&AB=2,BC=3,CE=l,:1:EF8f.JK.F21.87t)~11rtE~n-mr.H~Jf.17](}:£WI~lll!mr,xtm~~mJf.l7.kt~f5L*frTiffil1!t.Ji:11ra1~lllHVl:ffllf$,5ft:1~T1001'-~JJ!~1¥Ef.JJ=Jf5JJf.l7.kii:~:J1i!i,$:1!~_g~:J1i!ifti:}),JJ\iU::kEf.JJiWiJ=f1'11:~tl,;~tr:pifl)Jt~:JJi!f~rrr*,J=fJij-12...2526...5051...7576...99100J=Jf5JJf.17](ii:It1.31.3...4.54.5...6.46.8...1113...25.628o)*:1!~_g~mEf.Jr:pf}L~.B~:1!~_g~:J1i!fEf.Jff5J~7'19.2t,1$xt-t!J~=pf}L~Ef.J&::nff1t~fff1!?(2)7'1T~JJJJriH9Jf.l7.k,~iifij}:£-1'-Jf.l7.kii:Ef.J;fffiil,Mlti:J:1!1'-ttItEf.J$7tfti:1.5firfirtil~m.~~~75%Ef.J~JJ!*m~ti:J~~-~.~~m:i!1'-~mm~}:E:7'J$~?22.8Jt)~~~Ef.J~-=fr:p~;ff21'-nJ;j(,11'-tH*,J!®J;j(~ID!~:r~x;~tfm&:!iJ'J.(1)}A~-=fr:j:lllJHtfL:t~ti:J11'-f*':fj!z:@]J:f:jffi.?j'-P}IlJf!tfL~ti:J11'-f*.):jtjj;J;j{X~tf:JEf.JJ;j(t~£nf*Ef.Jtilt$.(2)M~-=fr:pllJf!tfL~ti:J11'-f*,~05¥1::Ndif*,~:fi!z:@I-P}IlJf!tJl~ti:J11'-f*;~o5¥1:Jl!::E!J*,~@I:#-:Jre?J,-P}IllitrL~ti:Jl1'-J;j(.~&~ti:JEf.JJ;j(8£~J;j(Ef.JM$£~.23.(87-})~000,7'1TUi!Uii:~iiJx;f1¥~,¢,r:A,B;:i'BJEf.JJi!£!*\,::(:£~iiJ1¥:1!:illI1R,¢,r:C,D.i~H~CD=80m,LACD=90°,LBCD=45°,LADC=l9°l7',LBDC=56°l9'.NA,B,C,D::(±IJJ-fliii*J,3]tA,Bjj;J;j,¢.r:;:i'B]Ef.Jfi!£7*\.B(~23;W)24.C8)t)Ej3,Z:.w;JJdf\f\lJ-1i::i!UA.A:1:-tl!.-*B:1:-tl!..Ej3ItZ:.lf!.1min:±l~,Z:.1¥1ltiJt£Ej38'-J2f(!f.1:£~~1-T~r:J:l,Ej=f~A:!'!!!I¥!Ji!E~Y1Clf!.{fi:m)EjBii'BJxClf!.1iz:min)Zi'BJBJffi~**imOOYr7k(1):f:EOOPU!!J:±lZ:.~A:!'!!!I¥!Ji!E~YzClf!.1iz:m)EiBii'BJxZi'BJ89rn~001~;C2)i1fEj3l:l:Z:.ilt5min¥U:iL5B:1:-tl!.,*Ej3~~1-TfiYffflBSB1i'BJ.ylm(~24Jm)25.C8)t):!mOO,B~P£805'~-,8.fflWJ#~f\lli¥!::/J~:i1,8PfF801'8-;Rtu~.~*:O)m1i:Rfl:l1m~J\fFoo;C2)1511:mf'FooB1*~,~:±1&,~ssx'¥1Jl~.p(~25Jm)26.ClO)t)B~=iJcill~y=ax2+bx+cl¥!001~f2:i1(-2,1),(2,-3)WJ,8.(1)*bI¥J{i[.C2)~c-181,i~rn~i¥1001~BJJJi,81¥!~~1HIF89ji;J\{Jl£A.xlmin(3)-!&Cm,O):li!d~rn~8J001~Eix!AA89-~i~~.8.~-1m3Bi,~i:lrn~i¥1001~,1i:t~~t!:JaE!JJ&{Jlm:OO.27.(9)1-)1£JL1ilJf*~Hiff_t,~J;)!l!l(;'&;*f-001-Tim1£:&i9R?~(1)~o~CD,~mBJ-BJ:~-If:lg12em,BJg-BJ:~OCBJrttALA~A1£mirn:f~)WJ__t,ACBJ-If:lg4rrem.1£~@Eifffii¥J~mi¥J{P!U00~Jf~9=tI!!IJ:±!~J;)~J(M,~A~1-TiU-~Bi¥J:&imJm1£,:#-t~F:±11::1¥1-Kc~a51U*1¥H~%).00ccC2)~@9=t1¥1JL1ilJ1*El3mi00~1£;f§IPJi¥J~f!Uo~t.H£1.nX;.0~~fli¥J19L~,-~A1£~1'1i¥JmiiDI2i!JWJl:.~~fli¥1-BJ:~-If:lgl,~tii¥Jfi1b7gh.CD~J;)~J(M,~A)J1!g1-Ti0,~oi¥J:&imJm1£1¥J-KJgACJiH5l,hi¥11-t!J&s:t7&ffi).~@~ADi¥1-lf:J;;a,-~B1£-BJ:~OC__t,OB=b.~1ti¥J{P!UOO~Jfi!l~Oi!l®Eifffi,1£i!lrttl!!IJ:±l~!l!l(MAA00fi~ABI¥J:&imim~i¥Jffi.I!J,3f~ili*iii9Rim~i¥J*1¥1}Gf,1m.0A®cD@