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

????:?????300????:?????????

???????(???):????????????,????,?????,??,???

?,?????3.1??,??????????????14.7???????????????????,??“????????????????????????”?????,???6????,???????????????11?????????????????????????????,????????????2?????????????????,??,?????????????????????????????,?????????

??????????????,??????????,?????????,??110??????????,????????????????????4.54???????,????????????15.1%,????????1???????????????????????????????????????,???????????????????,???????????1100??,?????????????????????????1300??????,??990????

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