?? ?2?????9?,????4?????????
![](https://image.chezhanri.com/2020/0408/9552b6917f2a3a53196bd29e18820269.jpg)
????:1????????????:??1960????
2?????
3????????
4????????????
5??????200???????
???????????????????????????????????????6????????20???,?????????,?????????????????????????????2???????9?????????
??,??4?????????
????,??20???,?????????????2??????????????????????????????????????9???,??????????
?????,?????,??????,????,????????????????????
??????????????????????????????????,????????????????(???? ??????????)
????????????????:??????????