?? ???????3258.9??????? ???????
????:1?????:??????vx
2?????????v
3????????
4???????????
5????????
?????10???31??????????? (??? ???????????????)???????(????????)31????????????????,?????3258.9???????,?????39.7%;??2523.6??,??????35.1%?
???,9????????306.2????,???????,?????????????????229.5?????????????????????,?????????????6.1%???????75%,?????????????????????????????
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???????,????????????????????,?9???????????????58.6%,???????4600???,???????????????
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