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        1. ijУF(xin)иһW(xu)210߶W(xu)270ˣW(xu)300÷֌ӳӵķ@(g)꼉(j)ČW(xu)SC(j)ȡnW(xu)M(jn)І(wn){(dio)֪ĸһW(xu)гȡ˔(sh)7ôĸW(xu)гȡ˔(sh)(yng)     
          A  10               B  9            C  8                 D 7

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

          ĿД(sh)W(xu) (li)Դ x}

          UƷx%ÿFɱyԪ֮gĻؚwֱ(xin)̞y=256+3x,    

          AUƷÿ1%Fɱ259Ԫ. BUƷÿ1%Fɱ3Ԫ. 
          CUƷÿ1%Fɱÿ3Ԫ. DUƷʲ׃Fɱ256Ԫ. 

          鿴𰸺ͽ>>

          ĿД(sh)W(xu) (li)Դ x}

          y(tng)Ӌ(j)ijУ1000W(xu)Ĕ(sh)W(xu)ˮƽy(c)ԇɿ(j)õӱlʷֱֲDDʾM(mn)֞100Ҏ(gu)60֞鼰t

          A20%B25%C6%D80%

          鿴𰸺ͽ>>

          ĿД(sh)W(xu) (li)Դ x}

          ˽һƬ(jng)(j)(sh)ֵL(zhng)rSC(j)y(c)100(sh)ľĵײL(zhng)λcm(j)Ô(sh)(j)(hu)ӱlʷֱֲDDʾô@100(sh)ľײL(zhng)С110cmꔵ(sh)n    

          A30B60
          C70D80

          鿴𰸺ͽ>>

          ĿД(sh)W(xu) (li)Դ x}

          ˽ijУҕrSC(j)سԓУ200ҕrõlʷֱֲDψDڲ?jn)?sh)(j)Gʧ֪ǰ4Ml(sh)ɵȱȔ(sh)6Ml(sh)ɵȲ(sh)O(sh)һM(sh)aҕ4.65.0֮glʞbta bֵքe飨      

          A78, 0.27 B27, 0.78
          C54 , 0.78 D54, 78

          鿴𰸺ͽ>>

          ĿД(sh)W(xu) (li)Դ x}

          һM(sh)(j)Ę(bio)(zhn)t(sh)(j)Ę(bio)(zhn)飨 

          A B C D

          鿴𰸺ͽ>>

          ĿД(sh)W(xu) (li)Դ x}

          ijt21_(ki)ʼͨ^(gu)Ј(chng){(dio)õtķNֲɱQλԪ/100kgcЕr(sh)gλ죩Ĕ(sh)(j)±

          r(sh)g
          50
          110
          250
          NֲɱQ
          150
          108
          150
             (j)Д(sh)(j)к(sh)ģпtķNֲɱQcЕr(sh)g׃P(gun)ϵ               
          AB
          CD

          鿴𰸺ͽ>>

          ĿД(sh)W(xu) (li)Դ x}

          (j)ijˮ^(gun)y(c)c(din)Ěvʷy(tng)Ӌ(j)(sh)(j)õijlˮλlʷֱֲDD2ĈDпԿԓˮ^(gun)y(c)c(din)ƽһһεĺˮˮλǣ   

          A48 B49 C50 D51

          鿴𰸺ͽ>>

          ĿД(sh)W(xu) (li)Դ x}

          O(sh)a(chn)Ʒa(chn)ca(chn)Ʒλɱ֮gľ(xin)P(gun)ϵ(sh)顪0.87@f(shu)g  

          A߶P(gun)BжP(gun)CP(gun)DOP(gun)

          鿴𰸺ͽ>>

          ͬ(x)(c)