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

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

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

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

????????:???????? “???????????”_????

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3???????????

4????sn??

5????????

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

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

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

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

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

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

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