??????2.1???

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

?????12??????????13?? (? ?)?12??13??????????2.1????????

??????????????,12?????????????13??13??25????????31?,?(???22.11??,??113.32??????)???????????2.1???????????,??13??????

?,??,?????

???????,???11??,?,????????????,???????????????

?????????,?5??,?5????(?????????) ??:???????????????