???????? ??????????

????:???????????:????

??1?8??????? (????? ????????)??????????(PUB)??????????(??“????”)7???????,?????,?????,???????????????,????????????????

??????? ???

??,??????,??????????????30????/?,??????????70???????????????,???????????????+?????????????????????????,???????????????????????????

???????????,????????30????????????“????”?????????

????????1990???,??4????/????????????????????????????,???????????12??????????????,?????????????“???????????”??????,????????22%??

“??????!”??????????????????????????,??60???????26????,???75%???86%????60%????????80%???????????????

???,??????“???????????”???????????,?????????????3.24???,????????????10?????????/???????,?????,??5G???????(????????)

????????:?????