?? ???,??5??????????
![](https://image.chezhanri.com/2019/0224/20190224103254454.jpg)
????:1?????:????????
2??????????
3???????????
4???????
5????????150??
??7??2? ????(CNN)????????????????????????????,???6????????????????????????30??,?????????????1?,??????????5????
????,????????????????,6??30???????2?????????????????????????????,???,???,???
???,????????????
????:????????????????