“???”????????????????? ?????

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

?????12?19???????????? (?????? ??)?,???????“??????”?????????????????????????????????????19????????????100?????????????,????????????????????????5.4?????????????,????20?3??,??

12??????19???,??“??”?????(???????????)

12???18????,?“??”???????23?????????,???????,??“????”?,????????

??,?????????????????,????????????????????,????“??????????”???????????,??

??????12???19??????,????4.3????,??2.5%,?4.5???,????

????????????,?????????12?19??????????????????????,??8.5????,?????????19.2%;????????????403.8?,??22.6%,??(?)

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