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    9^0.2
    1695.23*9.5+3809.37*3.07+123.63*24+374.75*19.5-1.25(1605.47*14.23+1092.12*3.19)
    372990/1092
    904.24*8.17+407.67*2.14-123.63*14.68-374.75*10.18-813.35*1.81
    914.43*8.57+441.44*2.21-122.15*15.09-373.47*10.59-859.39*1.88
    (10+(20-10)/(50000-10000)*(12571.87-3000))*1.0
    (10+(20-10)/(50000-10000)*(12571.87-3000))*1.3
    (10+(26-10)/(50000-10000)/(12571.87-3000))*1.2*0.8
     (10+(26-10)/(50000-10000)*(12571.87-3000))*1.2*0.8
    (5.05*11.51+13.92*8.63+857.39*3.57+27.88*0.2)/904.24
    5.05+13.92+857.39+27.88
    18.97*6.49+479.61*2.21-123.63*7.19-374.75*2.69
    (5.05*3.51+13.92*0.63)/18.97
    (6+(14-6)/(10000-3000)*(6856.71-3000))*1.3*0.9*0.8
     =(275.66+42.00+286.65+982.80+212.76+232.87+1689.20)×1.05+805.38+3.56+32.10+235.638+3210.82+0.5×316.56=
    0.35×904.458
    137.80×1.71=
    =(169.50+51.25+234.37+722.70+212.76+232.87+1689.20)×1.05+1610.76+23.51+55.95+3210.82+0.5×1882.693
    (169.50+51.25+234.37+722.70+212.76+232.87)×1.05+(2316.5+1689.20)×0.5×1.05+(1241.77+1610.76)×0.5+(19.70+47.25+23.51+55.95)×0.5+3210.82+0.5×1882.69
    (169.50+51.25+234.37+722.70+212.76+232.87+1689.20)×1.05+1610.76+23.51+55.95+3210.82+0.5×1882.693

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