?? ??:?????70%????????????????????
![](https://image.chezhanri.com/2019/0819/20190819173037496.jpg)
????:1??????150???:???????????
2?????500???
3?????100??
4??????
5???????????
8???1??????????,????????????????????????????,???????????????????«?»????????,?????????????????,?????????????,?????????????????????,??????????????????????????????????????????????????????????????????,??????????,??70%??????????,????6?????????????????????(?????? ?????????????????????)
?:???????