6??????????????????????23???????,??,???????2.49?????,?????,??????“?????????”?

???,??????????????11???????????,???????????????6??????????????????????????????????????,????4????2?????,??????????????,??????????????????????????

????«??»?????,???(????? ??????? ?????????????????????? ???)

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

??“?????????”????

?? ?????????2.49?? ?????????“?????”

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

2????????????

3??????

4????????

5????????

6??????????????????????23???????,??,???????2.49?????,?????,??????“?????????”?

???,??????????????11???????????,???????????????6??????????????????????????????????????,????4????2?????,??????????????,??????????????????????????

????«??»?????,???(????? ??????? ?????????????????????? ???)

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