?? ????????????????????????
![](https://image.chezhanri.com/2019/0828/20190828142737483.jpg)
????:1???????????:??sn??
2????????
3?????????
4???????????
5??????????
????????????8??????????6???????? ??,?,8??6??????????????20?????????????7????20??,?????????????????????????????13?(??????)??????????????????9?(??)????????????,???,???,???;???????????????????????????????????????????????????????«?????????????????»,??????????8????6???18???????????????????????(??????)????
??,???(?)??????,??,?????????????????,??????????????????,??????????????,????????????,???????????????;????????,?????????????????“???????????????????????????????????????????”????????“?”?????????????????????????????,???????????,????????????,????,???????????????????,???
??:???????