?? ??????2.2???????
![](https://image.chezhanri.com/2019/1218/2ce195d2c940bd5b8b6be144cef240a4.jpg)
????:1???????:??????
2???????????
3?????
4???????
5????????????
??????8??27????????? ?????????????27?????,???,???????????????6?20???????????,?????25??????,??????????????????2.2??7000??????
??,??,???????,?????5000???235?????????????,?7000??????????1?,????????
??????,???????6?20??????????,???????????,?73.84?(?????1.16?????????)??????,??200???????,?????50????????;???????????????,????730????????(????????????11.5???)???,??600?????????,???????2??(??)
????:??????