?? ??????????????7?????
????:1???????:????????????
2????????????
3???????????
4???????????
5???????
??????????????????11???22??????(??????)??????????????????????????22??????????????,???????????????????????????????????????????????7????,???“????????????”??????????????????????????“?????”?????“????????”?????????????????????“????????????????????”?
????? ????????,????,???????????????«????»?????????????????“???????????????????????”???10??,?“1(??????????????)+N(????)+X(???????)”?????????????,????????,??????????????????“????????”????????“????”????????????????????“???????????”???“???????????????????”,???
?????,??,????,??,?????????????????????;???,??,????????????????????????,?????
???,?????????????????????????????????????????,?????????????,????????????????,?????,?????????????????,???????????????(?????)
????:???????