????:1??????????:??????vx

2??????

3???????

4???????

5??????????

????2??5??????????????????????(? ?????????)????????????????……????,????,????????,?????????????????????????????????

?????????“???????”???????????? ????????

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

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

??????????????????????????? ?? ????????????“???”????? ???

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

“????,???????”?????“????”??????????,?????????????,??(???)

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