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

??

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

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

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

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

?:?????????

?????????

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

????????