??????????????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%,????????????????

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