?? ?????????????????????
????:1???????sn:?????
2?????
3???????????
4???????
5???????????
????????????????10???????1??????????? (??? ???????? ???????????????????????????)10????????1??10????????????????15??????????????,????????????K5197????????????????????,??????????2???15??,?????????????,???????
??? ? ????????,??2007????????????,?????????????????,????1???
?,??????????????????,?,?,??,??????????????????
????????4?????,?,????????????????????????????????????????????
????6??????,?????,?????????????,??????????????(?)
??????????:??????????????