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