? (??? ?????????)????????????,????2?????8??????,?????????????50???????????????????????13?????????,?????5.3??????????,?????75%,??

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

“??????????????????????????3????????,??????????????7500????????????????????,????????95%?”??????????,??,???????????????????????,??“??????????????”,???,?????????????,??“???????????????”,??????????????,?????????????????????,???????????

??,????96.8%??????2.2%?????????1%,???????????????????????,????????????????????,??,?????????? ?????????????:??????????????????????

??

??:???????????,??????????,??????????????