?? ??????????????????
![](https://image.chezhanri.com/2019/1217/577c2d4138315e1975577d6dff09807d.jpg)
????:1??????????:?????
2????????????
3???????
4??????
5?????2021
????????????6?????25???????????????????????? ??24??????????????????????,??
??????????????????25????????,?????????????????????????,??????????,???????????????????????????????,?5G???????????????????????????,??????
??????????????,???,??????????????,???????????????5G????????(??)
??????????:???