?? ??????!????????,??????
????:1????????????:??98???
2??????
3?????200??500
4??????????
5?????????
??12????2????????? ????,????,???????????
?????:????(ABC)????????????????????????????????,??????????????????????????????????????????????????????
????????11???????30???????????,??????????11??????????????????,???12??1???????????????2??????????????????????????????,?,?????????????????????????4?????????????,??,?????
?,??,??????,?????????,??11????29??????30?,?200????
???????:??