?? ?????????????????:???
![](https://image.chezhanri.com/2019/0605/20190605175236128.jpg)
????:1??????????:???????
2???????????
3???????????
4?????sn
5??????????????
6?????????????????24??,???
?????????,??,???????????????????????????????????,??????????????75?,?????,???????????????????????8?????,?????????,??,??????????????????,???
????????????
??????????????? ????????????? ????? ??????????????
????????? ??? ?? ?????????? ???
????????
(??) ???:????????