?? ?????????????5.3???????!???
![](https://image.chezhanri.com/2020/0323/e87cadc72cefd67ab8600acc76ee3f43.jpg)
????:1????????:??????????
2??????????
3??????
4??????
5??????
?????“???????”????????????????,??????????????(CNNIC)???«?????????»,??“??????”?????????????5.3??,66.5%??“??????????”??????????????????????
??:??5.3???!?????????????:???????
???:???