?? ?????????????,?????????
![](https://image.chezhanri.com/2019/0328/20190328105221413.jpg)
????:1??????????:???????
2?????sn
3???????
4???????????
5????????????
??????????????????????????????
??????3????1?2????
????????? ???????:??,????7?????3??,??3???????????1???????????????????2??????????
????,???????2018????“?????????????????????-2018”“????????”?,?6????????
6???????????3????7????,??????????????????????????????????????????????????????13?27???,??????????????1500??????????????????200????????????4??????????2019???,????????1500?200??????????????????“??????”??,?,???????????????
??????,?????,???,?????????????,?,?????????????????????????? ???:?????????????????????????