?? ?19??????!????????4x100?
![](https://image.chezhanri.com/2020/0320/5d2a78933a27d7c21685ba4eb1ba0e85.jpg)
????:1???????:????????????
2???????
3???????
4???????
5???300????
?????????????8?5???????????????????? ?8????5??????????,??4x100?,?????????????????????????????????????????????????
???,??????????
![](http://i2.chinanews.com.cn/simg/cmshd/2024/08/05/d2da0a5f43a1479290f2dfa69b5d056e.jpg)
???19???,??2?????????????????(???)
????:????