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        1. }ĿУc(din)F(tun)(do)ȫУW(xu)P(gun)ע⃺ͯԸ(dng)˴λ(dng)M(jn)г{(dio)飬õһMW(xu)rĔ(sh)(j)(sh)(j)DʾĽy(tng)Ӌ(j)DDϢ֪ABɽM˔(sh)ıȞ15ՈY(ji)ϢІ}

          Me

          ~x/Ԫ

          ˔(sh)

          A

          1x10

          B

          10x20

          100

          C

          20x30

          D

          30x40

          E

          x40

          1a= γ{(dio)ӱ

          2a(b)ȫ˔(sh)ֽMy(tng)Ӌ(j)D1

          3ӛAMƽ(sh)5ԪBMƽ(sh)15ԪCMƽ(sh)25ԪDMƽ(sh)35ԪEMƽ(sh)50ԪȫУ2000W(xu)Ӵ˴λ(dng)ՈӋ(j)˴λ(dng)ԻIƿĽ~sԪ

          𰸡1205002a(b)ȫ˔(sh)ֽMy(tng)Ӌ(j)DDʾҊ3Ӌ(j)˴λ(dng)ԻIƿĽ~s54000Ԫ

          1BM˔(sh)100ABɽM˔(sh)ıȞ15ɵaֵABM˔(sh)ͳռٷֱȿɵÿ?c)˔?sh)

          2CM˔(sh)^a(b)ȫDΣ

          3500W(xu)ƽ(sh)ٳԿ?c)˔?sh)ɵã

          1a=100=20

          {(dio)ӱǣ100+201-40%-28%-8%=500

          ʴ𰸞飺20500

          250040%=200

          CM˔(sh)200

          a(b)ȫ˔(sh)ֽMy(tng)Ӌ(j)D1҈Dʾ

          3AM(yng)ٷֱȞ100%=4%BM(yng)İٷֱȞ100%=20%

          500W(xu)ƽ(sh)54%+1520%+2540%+3528%+508%=27Ԫ

          tӋ(j)˴λ(dng)ԻIƿĽ~s200027=54000Ԫ

          (x)ϵд
          P(gun)(x)}

          ĿД(sh)W(xu) Դ

          }Ŀ֪P(gun)xһԪηx2+2k+3x+k20Ѓɂ(g)ȵČ(sh)(sh)x1x21tkֵ_____

          鿴𰸺ͽ>>

          ĿД(sh)W(xu) Դ

          }Ŀԥ^(q)ڄ(dng)T̎W(xu)(x)hʮŴ(dng)УMȫ^(q)̎hʮŴ֪RِِSC(j)ȡijУֽ̎ijɿĵͷֵ߷֌ɿֳABCDEMx6060x7070x8080x9090x100M100֣LƳɂ(g)Ľy(tng)Ӌ(j)D

          (j)ṩϢІ}

          1D(yng)ĈAĽ ȣӱгɿλ(sh) 

          2a(b)ȫlνy(tng)Ӌ(j)D

          3DEɽMɿ郞(yu)ȫ^(q)ӱhʮŴ֪Rِ2000̎Ӌ(j)ȫ^(q)Ӹِ_(d)(yu)Ľ̎ж

          鿴𰸺ͽ>>

          ĿД(sh)W(xu) Դ

          }Ŀc(din)Ax1y1Bx2y2Cx3y3ڷ(sh)y= ĈDx1x20x3ty1y2y3ĴСP(gun)ϵǣ

          A. y1y2y3B. y2y3y1C. y3y2y1D. y2y1y3

          鿴𰸺ͽ>>

          ĿД(sh)W(xu) Դ

          }ĿDƽֱ(bio)ϵ֪AOBǵ߅c(din)A(bio)ǣ04c(din)Bһc(din)Pt0xSϵһ(g)(dng)c(din)BAPAOP@c(din)Ar(sh)ᘷD(zhun)ʹ߅AOcABغBODPDOPD

          1(dng)tr(sh)DPL

          2c(din)P\(yn)(dng)^՗lγɵOPDeS

          ٮ(dng)t0r(sh)Sct֮gĺ(sh)P(gun)ϵʽ

          ڮ(dng)t0r(sh)ҪʹsՈֱӌзϗlc(din)P(bio).

          鿴𰸺ͽ>>

          ĿД(sh)W(xu) Դ

          }Ŀ֪タLy=ax2+bx+3cxSA10B30c(din)cySc(din)Cc(din)D

          1タĺ(sh)_(d)ʽc(din)D(bio)

          2􌢒タLySƽƺõタLL(jng)^c(din)E41cySĽc(din)Cc(din)DڒタLǷc(din)MʹMCCeMDDe2c(din)M(bio)Ոfɣ

          鿴𰸺ͽ>>

          ĿД(sh)W(xu) Դ

          }Ŀ߅εһlǾ߅ηֳɃɂ(g)t@lǾ@(g)߅εɷ־@(g)߅ν߅һ(g)߅Ѓɗlɷ־tQ^߅Σ

          1߅һ߅ε ̖

          ƽ߅ΣھΣΣ

          (yng)ã

          2Dڽ^߅ABCDУACADACֱƽBDBAD80BCDĶȔ(sh)

          о

          3߅ABCDABADCDA90AC߅ABCDɷ־ՈֱӌBCDĶȔ(sh)

          鿴𰸺ͽ>>

          ĿД(sh)W(xu) Դ

          }Ŀٵˣӭ֙C(j)ЈNij̈Nۼ҃ɷNƷƵ֙C(j)@ɷN֙C(j)M(jn)r(ji)ۃr(ji)±ʾ

          M(jn)r(ji)Ԫ/

          4000

          2500

          ۃr(ji)Ԫ/

          4300

          3000

          ԓ̈Ӌ(j)Ͷ15.5fԪYȫُM(jn)ɷN֙C(j)ɲȫNۺɫ@ë2fԪë=ۃr(ji)M(jn)r(ji)N

          1̈ҪMُܶM(jn)׷N֙C(j)(yng)ԓӵM(jn)؛ُM(jn)҃ɷN֙C(j)

          2ͨ^Ј{(dio)ԓ̈Qڼ׷N֙C(j)ُM(jn)ķpټ׷N֙C(j)ُM(jn)(sh)ҷN֙C(j)ُM(jn)(sh)֪ҷN֙C(j)ӵĔ(sh)Ǽ׷N֙C(j)pٵĔ(sh)2ُM(jn)@ɷN֙C(j)ĿY𲻳^16fԪԓ̈M(jn)؛ʹȫNۺ@õëë

          鿴𰸺ͽ>>

          ĿД(sh)W(xu) Դ

          }ĿD 1ھ ABCD c(din) E lcm/s ٶȏc(din) A c(din) D \(yn)(dng)\(yn)(dng)r(sh)g tsBY(ji) BE^c(din) E EFBE CD F EF ֱO

          1C12

          2D 2BY(ji) BFO c(din) GBY(ji) EG֪ AB4AD6

          ú t Ĵ(sh)ʽʾ DF L

          BY(ji) DGEGD EG ĵ t ֵ

          3BY(ji) OC(dng) tanBFC3 r(sh)ǡ OCEGՈֱӌ tanABE ֵ

          鿴𰸺ͽ>>

          ͬ(x)Դ