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2?????????150???

3???????

4??????vx

5???????

???2????5????? (???????? ???)???????????????????5???????????,??(1???28????2?????????4?),?????21961.66????,??4.87%?

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????,?4520.97?,????41.18%????102.27???,???12.78????16.12??,?23.79%?

????????1??????????31??2.35??????????????2??????1???????????2.66???,????????;?????????????????????2???3??????15.76????2???4???16.11?,????

??96.67?;???????????23.13?????2?????????????4?,????????3.96??????,???

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