?2???????2???? ??????????,?2??????????????????1?,??????????1?31???????????????????????????????,??????????,????????????????????????????????????????????????19?????

???:?,???1???31????,??????,?????????????????????????????

????????????,????2?1?????,?????????????????,???????????????????

?,?????????1?????31??????????,?,?????????????,????????

?????,??????????????????,?,???????

??????,??????2???????1??????????????????????????????????,????,????

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

??

??:???????????,??????????,??????????????