??
????????2????????????14?? (???? ?????????)??????14???,?2???8??????????????,???????????50??????13????,??????????5.3????????????,??????????????75%?
??????,?????,?????
?????,?????????????????770????????,????????????1????10???1?22.5????????????6????????,??????????????????????????????????,????????????????
??????????,???????????,?,????????,??????????
?,???????????????????“????”?????????????????????“?”??????
?????????????,?????????3??????,??????????????7500????????,??95%??,?????????????????????
???,?????96.8%,???????????????2.2%,???????????????????????1%,???????????
????????,?????,???,?????????,???,????????(??????????)
??????:????????????
???????????????????5????????????????