?? ?????????????? ?????????
????:1?????????:??????
2????????????
3??????V
4??????????
5????????????
?????????????,???,?????????????????????2???????????,???????
??,???,??,?????????????,??,??????????????????
????,????,????“?????????”??????,????????????????,??????????
?????????“????,??????????????,???????”???,????????,???????????????(????????? ??? ?????????? ??)
????????:???????