?? ????????6.8??????126???
????:1???????:?????????????
2???????
3????????vx
4??????????????
5???????
??????????????????1????7??? (?????? ??????????? ?)?????????????????7??,?,????????19??????,??????????????6.8????????126????????????????188????,28??????;?3609???
?1??????7?????9??5???,????6.8?,???????????10???????,????87.45????????????,?28.50????
????23??????????????,?4000??,?????????????,??,?????????????
???,???????,??,???????,??
??«??»??,???????????????????????7???6.8??????????????????(????????????????????) ????:??