????:1?????????:??????

2?????vx

3??????????

4??????????

5???????

??????????????????????????????????????

2??????5???????????????????????????????6??,????????????????????????????,???

???,???“?”??????????????????????????-?????……??????????????????????“?????”?????“??”???,??,??????????,?????????,??“????????????”?????

????,???????????????????????“???”,???????,????“?????”???????????

???:??????????????????????

???:????

???:?????????????????

??????:???

??:??????????

????:????