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    (169.5×4+88.49×1.034)-193.191×(8.5-1.68-2.8) -109.24×(8.5-1.68-5.1)
    (169.5×3.97+88.5×1.034)-193.191×(8.5-1.68-2.8) -109.24×(8.5-1.68-5.1)
    3.02×10^6 /(300×0.95×80)
    (169.5×3.97+88.49×1.034)-193.191×(8.5-1.68-2.8) -109.24×(8.5-1.68-5.1)
    2.40×10^6 /(300×0.95×70)
    2.79×10^6 /(300×0.95×80)
    0.8×3.02×10^6 /(300×0.95×80)
    (7.539+72.185)/2×(8.5-4.6-1.68)
    64.559/2×(4.6-(-0.651))=
    (2×47.539+72.185)/(3×(47.539+72.185))×(8.5-4.6-1.68)
    1/3(4.6-(-0.651))+(8.5-4.6-1.68)=
    90.836-11.102*1.68
    4.19×10^6 /(300×0.95×80)
    4.19×10^6 /(300×0.95×70)
    0.8×2.40×10^6 /(300×0.95×70)
    0.8×2.40×10^6 /(300×0.95×80)
    0.8×2.79×10^6 /(300×0.95×80)
    64.559/2×(4.6-(-0.651))+(47.539+90.836)/2×(8.5-4.6)
    [17.1×4.6+18.2×(8.5-4.6)+30]×0.61-2×12×0.781
    64.559/2×(4.6-(-0.651))+(47.539+95.277)/2×(8.9-4.6)

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