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        1. }Ŀ?q)WƼwˇ(ji)g꼉(j)(sh)W(xu)(dng)СM΄(w)ǜy(c)W(xu)УUABĸ?c)Uǰ_(ti)Aϵc(din)C̎y(c)U픶AǞ45Uķߵ_(ti)Aµc(din)F̎y(c)U픶AǞ60֪_(ti)ĸ߶BE1ףc(din)Cĸ߶CD3_(ti)ACF½Ǟ30c(din)EFDͬһlֱUABĸ߶ȣӋ(j)Y(ji)_0.1(sh)(j) 1.41 1.73

          𰸡⣺^(gu)c(din)CCMABMt߅MEDCǾ

          ME=DC=3CM=ED
          RtAEFУAFE=60O(sh)EF=xtAF=2xAE= x
          RtFCDCD=3CFD=30
          DF=3
          RtAMCACM=45㣬
          MAC=ACM=45
          MA=MC
          ED=CM
          AM=ED
          AM=AEMEED=EF+DF
          x3=x+3 
          x=6+3 
          AE= 6+3 =6 +9
          AB=AEBE=9+6 118.4ף
          UABĸ߶ȼs18.4ף
          ^(gu)c(din)CCMABMt߅MEDCǾO(sh)EF=x(j)AM=DEг̼ɽQ(wn)}
          c(din)ͨ^(gu)`\(yn)P(gun)Ǹdž(wn)}ǣҕˮƽϷĽǣҕˮƽ·ĽǼԽ}

          (x)(c)ϵд
          P(gun)(x)}

          ĿД(sh)W(xu) (li)Դ

          }Ŀһл܇(ch)񂣬(jng)^(gu)һlL(zhng)300׵Ҫ20ĕr(sh)gһKֱ°l(f)ڻ܇(ch)ϵĕr(sh)g10룮@л܇(ch)L(zhng)ȣ

          СȽ(j)W(xu)(x)Q(yng)Æ(wn)}Ľ(jng)(yn)(du)憖(wn)}M(jn)̽СȽ̽^(gu)Ո(qng)a(b)ɣ

          O(sh)@л܇(ch)L(zhng)xףô

          1܇(ch)^(jng)^(gu)µ܇(ch)β(jng)^(gu)܇(ch)ߵ· @Εr(sh)g(ni)܇(ch)ƽٶ /

          2܇(ch)^M(jn)܇(ch)βx_(ki)܇(ch)ߵ· @Εr(sh)g(ni)܇(ch)ƽٶ /

          3܇(ch)(jng)^(gu)ºͻ܇(ch)ͨ^(gu)ƽٶȵP(gun)ϵ 

          4ɴ˿г̲@л܇(ch)L(zhng)ȣՈ(qng)з⣩

          鿴𰸺ͽ>>

          ĿД(sh)W(xu) (li)Դ

          }ĿϿhl(f)չr(nng)˜I(y)ȫ조֮ͥĝع@_ĴġͿfʳɫu(y)翗ȥ_ץסC(j)l(xing)(chung)I(y)Ͷ20f(wn)Ԫ?jing)?chung)kr(nng)Ҙ(l)+סޣһr(sh)gջͶY80%в(rn)ס(rn)2߀1f(wn)Ԫ
          1ȥԓr(nng)Ҙ(l)ס޵(rn)f(wn)Ԫ
          2_ްȥIJ(rn)ȫ^m(x)ͶYO(sh)خa(chn)Č(sh)wN(xio)ۺ;W(wng)N(xio)(xing)Ŀڽӛ߲Lr(sh)f(shu)A(y)Ӌ(j)ס޵(rn)ȥ(hu)10%L(zhng)خa(chn)N(xio)۵(rn)׳ջͶY߀@ò10f(wn)Ԫļ(rn)Ո(qng)(wn)خa(chn)N(xio)жf(wn)Ԫ(rn)

          鿴𰸺ͽ>>

          ĿД(sh)W(xu) (li)Դ

          }Ŀώ˽W(xu)ڼҵxrSC(j){(dio)20W(xu)ijһxСr(sh)(sh)wry(tng)Ӌ(j)£

          xr(sh)g
          Сr(sh)

          2

          2.5

          3

          3.5

          4

          W(xu)˔(sh)

          1

          2

          8

          6

          3

          tP(gun)@20W(xu)xСr(sh)(sh)f(shu)_ǣ
          A.(sh)8
          B.λ(sh)3
          C.ƽ(sh)3
          D.0.34

          鿴𰸺ͽ>>

          ĿД(sh)W(xu) (li)Դ

          }Ŀ֪DRtACBУACB=90c(din)DABc(din)c(din)ECDc(din)^(gu)c(din)CCFABAEL(zhng)c(din)F
          1CADEաFCE
          2DCF=120DE=2BCL(zhng)

          鿴𰸺ͽ>>

          ĿД(sh)W(xu) (li)Դ

          }Ŀ֪Dʾƽֱ(bio)ϵxOyC=90OB=25OC=20c(din)M߅OCϵһ(g)(dng)c(din)cc(din)OCغϣ^(gu)c(din)MMNOBBCc(din)N

          1c(din)C(bio)
          2(dng)MCNL(zhng)c߅OMNBL(zhng)ȕr(sh)CML(zhng)
          3OBǷc(din)QʹáMNQֱΣՈ(qng)˕r(sh)MNL(zhng)Ո(qng)f(shu)ɣ

          鿴𰸺ͽ>>

          ĿД(sh)W(xu) (li)Դ

          }ĿDABCEBC߅c(din)CDABAB=2AC=1DE= tCDE+ACD=
          A.60
          B.75
          C.90
          D.105

          鿴𰸺ͽ>>

          ĿД(sh)W(xu) (li)Դ

          }ĿijL(fng)^(q)T(mn)Ʊr(ji)aԪ/(du)F(tun)wƱҎ(gu)10(10)10^(gu)10˲ִb.O(sh)F(tun)wοT(mn)ƱM(fi)ÞyԪycx֮gĺ(sh)P(gun)ϵDʾ.

          (1)գa_______b_________.

          (2)Ո(qng)(dng)x10r(sh)c֮gĺ(sh)P(gun)ϵʽ

          (3)(do)СAΈF(tun)ԓ^(q)T(mn)ƱM(fi)2720Ԫ(do)βُ(gu)I(mi)T(mn)ƱAΈF(tun)ж

          鿴𰸺ͽ>>

          ĿД(sh)W(xu) (li)Դ

          }Ŀij_(ki)l(f)˾a(chn)960®a(chn)ƷҪӹͶЈ(chng)F(xin)м҃ɂ(g)Sӹ@a(chn)Ʒ֪׹SΪ(d)ӹ@a(chn)ƷҹSΪ(d)ӹ@a(chn)Ʒ20ҹSÿȼ׹Sӹ8a(chn)Ʒ˾踶׹SӹM(fi)ÿ80ԪҹSӹM(fi)ÿ120Ԫ

          1҃ɂ(g)Sÿܼӹټ®a(chn)Ʒ

          2˾ƶa(chn)Ʒӹ£ÿ(g)S҆Ϊ(d)ҲɃɂ(g)Sͬr(sh)ɡڼӹ^(gu)˾һ̎ÿ쵽SM(jn)мg(sh)ָ(do)ؓ(f)(dn)ÿ5Ԫ`a(b)M(fi) Ո(qng)˾xһNʡr(sh)ʡX(qin)ļӹf(shu)

          鿴𰸺ͽ>>

          ͬ(x)(c)