98. 在業餘無線電數位傳輸的“APRS”是什麼的縮寫？
(A) Automatic Packet Reporting System
(B) Associated Public Radio Station
(C) Auto Planning Radio Set-up
(D) Advanced Polar Radio System

答案：登入後查看
統計： A(32), B(0), C(0), D(1), E(0) #2252270