?? ?? ??????1?????????????
![](https://image.chezhanri.com/2019/0325/20190325151331939.jpg)
????:1???????:??????vx????
2??????????
3???????????
4??????????
5??????????
??7?????7???,???????????6???????????????7??????53.3???,???,????????????
?????????????????,????43.3????,??????(Redding)???????48.3??
??7?,????????3600???,?????????????100????(??? ??????????????????)
????????????:????????????