?? ?100? ??????????500?????????
![](https://image.chezhanri.com/2020/0325/376e6c37aba9e73294509be824f6ffa7.jpg)
????:1????????:????
2???????
3??????95
4??????
5???????????
?100????,??????????,???,????500??,???30%,?????????500??????????60%?????????????,???????????????????????????10???????????
??????????????????????:???????????????