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

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

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

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

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

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

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