10063 ×50×3803/(4357+11157)
    20821.48×1.04
    0.6×1.5×11+0.9×1.5×28+1.2×1.5×402+1.5×1.5×20
    0.7×2.1×353+1.2×2.1×20+1.8×2.1×68
    （0.9＋2.1）×2×208
    1.15×509.65
    0.9×2.1×208
     1.15×509.65
    4.1×（1.8+1.65）×2+3.1×（1.8+1.65）×2×9+（1.83+2.73）×3.66×10×2
    4.1×（1.8+1.65）×2+3.1×（1.8+1.65）×2×9+（1.83+2.43）×3.66×10
    4.1×（1.8+1.65）×2+3.1×（1.8+1.65）×2×9
    1116.6×（0.3－0.12）×2
    193.53×（0.5－0.12）×2×10
    203.22×（0.6－0.12）×2×10
    945.87×10-163.8×0.24×10-（281.34+325.26×9）×0.24
    （163.8-18.3）×1.4
    518.39+1963.07+352.82+1685.76+（351.92+1685.76）×8
    2×[325.26×(3-0.12)- 93.87]
    163.8×(3-0.12)- 111.18-0.24×36
    2×[325.26×(3-0.12)- 93.87]

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