???????????????

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

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

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

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

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