?? ??????????????????
![](https://image.chezhanri.com/2019/0302/20190302110525289.png)
????:1??????50??????:????????
2???????300
3?????
4????????
5???????
??8?28????????????? (??????????????? ???)????28???,200??????????2????????????27?????????,????????????6?,????
???????????????????,??,?????????,??????
?????????????,?6??????????????????,??????????????????????????????,???“??????????????????500???????????????,???????????????”
??????????????????,?7??????????,???????????142.5?????????????????????????????,??????????????????8.9%?(????????????????) ??????:?????