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

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

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

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

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

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

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