????:1????????:??????

2?????????

3???????

4?????????

5???????

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

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

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

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

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

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

??:??