[22.5+(3/5/3+1.8-12.1*5/11)]*40%

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[22.5+(3/5/3+1.8-12.1*5/11)]*40%
x)6230776Գ543274Ԍ21PI*'HΆHlޜ';v3\F 1d%

[22.5+(3/5/3+1.8-12.1*5/11)]*40%
[22.5+(3/5/3+1.8-12.1*5/11)]*40%

[22.5+(3/5/3+1.8-12.1*5/11)]*40%
结果为:7.6