5.19.**********************************

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1 | 2012-10-30 21:44:18 | 显示全部楼层 |阅读模式

5/19+14/190×5.76-0.213×140/190+14/190×6.37=5/19+14/190×5.76-2.13×14/190+14/190×6.37=5/19+14/190×(5.76-2.13+6.37)=5/19+14/190×10=5/19+14/19=1...

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