?? ??????????????????
![](https://image.chezhanri.com/2019/1226/0081ea5fccfb25ecd7e4a659448a70d0.jpg)
????:1??????:???????????
2????????????
3????????????
4????????????
5??????????????
?????????????????????????6???????25?????????? ???24??,???????????????
????????25?????????????????????????,?????,?,???????????????????????????????????????????????,??????????????5G??????????,???
??????????????????????,????????????,??????????????????,?????5G??????????(??)
????????????????:??