?? ????????9?8? ???????????
????:1??????:??????
2??????
3?????
4???????
5?????????????
??????12?????20????? ??????????,?????????????19??,??????????????????????????9????????????8???????????
????????19?,?????????????9???8???? ??????,?????????????4???????????????1?????,??????????,???????????????19?????????????????,??????????????????,??????????3???????,????????????,???????????,???????????????????????????????,????
???,??????,???,?????????,?,???????????????????????????,?????????????
????????????????,??????,??????,????????,??????,???,????
???????????????,??????????,????????????,???????????
???:????????????