????:1???????????:???????????

2????????

3?????????

4??????

5???????

2???????????????????????????????10????????????????,????????,????(?????????????????????)???????????,8??????,?????,?,??????????????????

?????????,????,???3?????????????,?700?????????????????????????,???98.2%?

????(?????????)?????????8???,?????????70??????????52????????????????,????20???

???,???????2????????????20?????1????15??????????,???500????????????,????????(??? ?????????)

????????:??????????