?? ?????:??70%????????????????????
![](https://image.chezhanri.com/2019/0730/20190730104308373.jpeg)
????:1?????:?????????
2????????
3???????
4?????
5????????
8????????????????????1??????????????????,????????????????????????????,??«????»?????,??,??????????,????,??????????????????????????????????????????????????????????????????,????????????????????????,??????????70%????,?????????????????6??????????????(????? ?????????????????????)
??????:????????