??????1.45??? ?????????????

????:?????????:??????sn

???????????????2???22???(??? ??? ??)2??????????????22????,????40???????,???1.45???,??????????????????,????

?????????,??,???????????7501.1???,?4.9%,??187.5???????????,?1?22?????24????25?????????,???222.4????238.5??246???,3????

?????????????? ???

??????????????????,??????4740.1????????,??5.1%,????2175.6??,?????6.5%,???1065.6????????,???771.6?,????553.5????????,????143.9??????????????????????????20????,?????

??,????????7007.9????,???2.4%,??????,????10?,“?”??????4429???,???????????????????????????20??????,????????

????????,??????????,?12306?,????????,????????4?????

??????????,??????130659???????????????,????????3266?,?????????4461?????????,??????????13223??????,???9861????????3362??,???????

??????????????????,?????????400??????????,????24%,??????????????8400?????????????????????????(????)

???:?????????