?? ?????7??????????????
????:1?????:??????????
2?400??????4???
3???????
4?????
5?????
??11????????22????(??????????????????)???22?????????????????????,????????????????????????7??,????“???????????????????”?????????“????”???????“??????????????”?????“??????????????????????????”?
????????????? ??????????????,???,????????????????«????»??????????????????????????????????????????????????????????????????????????“????”??????10????,?????“1(?????)+N(???????????????)+X(???)”???????,?????????????????????,????????“????????????????????”?????????“????”????????“????”???????“?????????????????”,???????
???,????,??,???,????;?,?????,?????????????????????????,?????????????????????
???,??????????????????????????????????????????????,??????????????????????,??,????,????,???????????????????????(?????????)
?????:??????