?? ??????????????!?? ?1?9?
????:1????????100??:?????????
2?????
3?????????
4???????????
5??????????
??????????????12????18?????????????? ?(ABC)???????????????????,????17??,?,??,???????????????1??????,9????
????:?????????(ABC)??????,???,?????????17??19?15???????????
???,“?? ”
??????????,9????????
????
?????:???