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

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

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

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

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

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

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