?? ??????????????????????
![](https://image.chezhanri.com/2020/0317/6594f3eb9744d920fa8559bd161e0e42.jpg)
????:1????????????:?????????
2??????????
3?????
4????????????
5??????????
?????????????8???????20?? (?????????????? ?????????)?????????????????20?????????????,??,????????????????????????
??,????????????????????,??????????????????????,?????30%??????,?,???????????????????????????,??
??,??????????????????????,??,?????????????????
????????????,???????????????????????????,????????????????????????????????,????????,????????????????????
????,???????????,?????????????????,??????????“?????????????”,???“??????????”,???????????,?????,?????
“???????,???,????”??????????,????????????,??????????????,???????????,?????,???,?????
????????????????,??????????????,??,??????,????????????????????????????????????,?,?????????????????(??????????????????????) ??????????????:???????????