[22.5+(18/5+1.8-1.21*5/11)]除40%

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[22.5+(18/5+1.8-1.21*5/11)]除40%[22.5+(18/5+1.8-1.21*5/11)]除40%[22.5+(18/5+1.8-1.21*5/11)]除40%[22.5+(

[22.5+(18/5+1.8-1.21*5/11)]除40%
[22.5+(18/5+1.8-1.21*5/11)]除40%

[22.5+(18/5+1.8-1.21*5/11)]除40%
[22.5+(18/5+1.8-1.21*5/11)]/40%
=（22.5+3.6+1.8-0.55）/0.4
=27.35/0.4
=68.375