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

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

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

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

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

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

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