??????????????5???

??????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%,??

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