??????????12??2???????????????? (?????? ????? ???????????)?????????????12????????2?????????????????

?:?????,???????????,??????????,??«?»??,???3?“??????”????,????????????

?????:????????,???????????,?????????????????????????????

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

?? ????????????????:??,??????????

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

2?????

3????????

4????????

5???????????

??????????12??2???????????????? (?????? ????? ???????????)?????????????12????????2?????????????????

?:?????,???????????,??????????,??«?»??,???3?“??????”????,????????????

?????:????????,???????????,?????????????????????????????

??????,??,?????????????????????,????????,???(????????) ????:?????????????????