?? ?????:????6.8?????????????
????:1?????????:??????
2??????????
3????????vx
4??????
5?????95?98???
???????1?7? (???? ?????????????????????????)??1??????????7??????,???????????????6.8????????????,???
???,??,???????????????????,??????????????,???,?,????,???????????
?,??????????????????????????26???????????,????
??,??1?????7????????9?????????????5????????,??(?????????????????28.50???,?87.45?)????6.8??,?10???????????????????????????????,?10??????4471????????????(??) ?????????????:?????????????????