?? ??????!????????,??????
????:1????????????:???????????
2???????
3???????????
4??????
5??????
??12??????????2??????????? ?????,????,????
??:??????????????(ABC)?????????????,???????????????????????????????????????????????
????????11?30??????,?11??????????,????12???1???????????????2????????,??,???4??????,??????,??
????,????,??????,???????????????????????,???11???????????29???30??????????????????????????????,?????????????????????????200???????
????????????????:?????