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