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

2????

3?????vx

4???????98?

5??????????

???????11????22???????????????? (?????????? ???)???,???????????????????,??????????????????????22???????,????????????

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

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

????????????????????,?????????????,??????????

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