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        1. }Ŀ?q)WƼwˇ(ji)g꼉(sh)W(xu)СM΄(w)ǜyW(xu)УUABĸUǰ_Aϵc(din)C̎yU픶AǞ45Uķߵ_Aµc(din)F̎yU픶AǞ60֪_ĸ߶BE1c(din)Cĸ߶CD3ף_ACF½Ǟ30c(din)EFDͬһlֱUABĸ߶ȣӋY(ji)_0.1ף(sh)(j) 1.41 1.73

          𰸡⣺^c(din)CCMABMt߅MEDCǾ

          ME=DC=3CM=ED
          RtAEFAFE=60O(sh)EF=xtAF=2xAE= x
          RtFCDCD=3CFD=30
          DF=3 
          RtAMCACM=45
          MAC=ACM=45㣬
          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
          ^c(din)CCMABMt߅MEDCǾΣO(sh)EF=x(j)AM=DEг̼ɽQ}
          c(din)ͨ^`\(yn)P(gun)Ǹdž}ǣҕˮƽϷĽǣҕˮƽ·ĽǼԽ}

          (x)ϵд
          P(gun)(x)}

          ĿД(sh)W(xu) Դ

          }Ŀһл܇񂣬(jng)^һlL300׵Ҫ20ĕrgһKֱ°l(f)ڻ܇ϵĕrg10룮@л܇Lȣ

          СȽ(j)W(xu)(x)Q(yng)Æ}Ľ(jng)(yn)憖}M(jn)̽СȽ̽^̣Ոa(b)ɣ

          O(sh)@л܇Lxô

          1܇^(jng)^µ܇β(jng)^܇ߵ· @Εrg(ni)܇ƽٶ /룻

          2܇^M(jn)܇βx_܇ߵ· ף@Εrg(ni)܇ƽٶ /

          3܇(jng)^ºͻ܇ͨ^ƽٶȵP(gun)ϵ

          4ɴ˿г̲@л܇LȣՈз⣩

          鿴𰸺ͽ>>

          ĿД(sh)W(xu) Դ

          }ĿϿhl(f)չr(nng)˜I(y)ȫ조֮ͥĝع@_ĴġͿfʳɫu(y)翗ȥ_ץסC(j)l(xing)(chung)I(y)Ͷ20fԪ(chung)kr(nng)Ҙ+סޣһrgջͶY80%вס2߀1fԪ
          1ȥԓr(nng)Ҙס޵fԪ
          2_ްȥIJȫ^m(x)ͶYO(sh)خa(chn)Č(sh)wNۺ;W(wng)NĿڽӛ߲LrfA(y)Ӌס޵ȥ10%Lخa(chn)N۵׳ջͶY⣬߀@ò10fԪļՈخa(chn)NжfԪ

          鿴𰸺ͽ>>

          ĿД(sh)W(xu) Դ

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

          xrg
          Сr

          2

          2.5

          3

          3.5

          4

          W(xu)˔(sh)

          1

          2

          8

          6

          3

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

          鿴𰸺ͽ>>

          ĿД(sh)W(xu) Դ

          }Ŀ֪DRtACBACB=90c(din)DABc(din)c(din)ECDc(din)^c(din)CCFABAELc(din)F
          1CADEաFCE
          2DCF=120DE=2BCL

          鿴𰸺ͽ>>

          ĿД(sh)W(xu) Դ

          }Ŀ֪Dʾƽֱ(bio)ϵxOyC=90OB=25OC=20c(din)M߅OCϵһc(din)cc(din)OCغϣ^c(din)MMNOBBCc(din)N

          1c(din)C(bio)
          2(dng)MCNLc߅OMNBLȕrCML
          3OBǷc(din)QʹáMNQֱՈ˕rMNLڣՈfɣ

          鿴𰸺ͽ>>

          ĿД(sh)W(xu) Դ

          }ĿDABCУEBC߅c(din)CDABAB=2AC=1DE= tCDE+ACD=
          A.60
          B.75
          C.90
          D.105

          鿴𰸺ͽ>>

          ĿД(sh)W(xu) Դ

          }ĿijL(fng)^(q)TƱraԪ/F(tun)wƱҎ(gu)10(10)10^10˲ִb.O(sh)F(tun)wοTƱM(fi)ÞyԪycx֮gĺ(sh)P(gun)ϵDʾ.

          (1)գa_______b_________.

          (2)Ո(dng)x10rc֮gĺ(sh)P(gun)ϵʽ

          (3)(do)СAΈF(tun)ԓ^(q)TƱM(fi)2720Ԫ(do)βُITƱAΈF(tun)ж

          鿴𰸺ͽ>>

          ĿД(sh)W(xu) Դ

          }Ŀij_l(f)˾a(chn)960®a(chn)ƷҪӹͶЈF(xin)м҃ɂSӹ@a(chn)Ʒ֪׹SΪ(d)ӹ@a(chn)ƷҹSΪ(d)ӹ@a(chn)Ʒ20ҹSÿȼ׹Sӹ8a(chn)Ʒ˾踶׹SӹM(fi)ÿ80ԪҹSӹM(fi)ÿ120Ԫ

          1҃ɂSÿܼӹټ®a(chn)Ʒ

          2˾ƶa(chn)Ʒӹ£ÿS҆Ϊ(d)ҲɃɂSͬrڼӹ^˾һ̎ÿ쵽SM(jn)мg(sh)ָ(do)ؓ(f)(dn)ÿ5Ԫ`a(b)M(fi) Ո˾xһNʡrʡXļӹf

          鿴𰸺ͽ>>

          ͬ(x)Դ