?? ?????????500??? ????????????????
![](https://image.chezhanri.com/2020/0115/cb8d337df096f33e797b39eadf42d692.jpg)
????:1??????????:???????
2????????
3?????
4????????
5???????
?8??19???????????????(?????)??«??»??????????,???????11????????26???30????????18???,??????????100?????????????,???500??,????
?????????????????,?????????30%??????,?500???60%,??????????,??????????????????
?,???60??,????
??:?????,???????????????????????????????????????????????????????????,????????????????????????????????100??????????????????????????
???,????,?????????????? ??:???