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

2?????????

3???????

4????????

5???????vx

?????11????????????21?????????? (??? ??)??21????????????????????????????????,??,??????????????????????

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

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

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

11????????????????21????,?????????????????????????? ??????????????????? ?????????????????????????????

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

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

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

11???????????????????????21???????????,?????????? ??????? ?????

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

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

???:??