5G大容量の携帯料金、米国の3割高3社寡占が響く

5G大容量の携帯料金、米国の3割高3社寡占が響く
https://www.nikkei.com/article/DGXZQODZ123G90S0A211C2000000

last-modified: 2020-12-16 21:35:13