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????:LQ ???:δ? ???????:2014-02-07 16:04

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????100×1000 + (100×40%)×1000 = 140000

???100×1000 + (100×50%)×(1000×25%) = 112500

???100×1000 + 100×(1000×20%) = 120000

???100×1000 + (100×30%)×(1000×50%) = 115000

???100×1000 + ???×(1000×50%) =10000+500×???

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