?? ??????????? ????????
????:1????????:??????
2??????????
3??????v(????
4???????
5???????????
??11??????????????????23?? ????,?11??????????23??27????????????,???????????,????,???6~10?,????????????????????????12~14?,????16??????28??,???0??????????????????,????????7???????????????????????????,??????????????,?????,???????????????,????
??,??????,?????????????????????????????????????????????????????????????????6~10?,??????,???????????????12??????????5~6?????7~8??,????????????7~8???????9~11????????
?,?????????23???????????27?????,?????????????????????????????????????????,?????????,?????????,??????????????????
???????,?,?????????,??????????????,???????????1~2?,????,????????;??,??,?????????????,????????????;?????,???????,?????
????????:???????????????????????????