?? ?????????? ??????????
![](https://image.chezhanri.com/2019/0605/20190605174820810.jpg)
????:1???????:??????
2????????400??
3?????600
4???????????
5??????????
??????????????????????????6?????????????29????????????????????????? (?? ????????????)????,6????????????28?????????????????????,«?????????????????????????????»??????????
?????,????????“?”????????????????????,????????????2021????“?????????????????????”?????????????????????????????,????????????,????????????????
“«??»????????,?,?????????????????”???
??«??»???,????????????,???,?,?????????
???,“???????????????????”????5G???????????????????“??????????”???????????????,??,????????????????????????,?????????,??????,??????????????????????
??,????????????????????,?????“????????????”?,????????????????????,???????(??) ?????????????????:?????