Updated AIS messages are transmitted to keep the information up-to-date.(1.0)
A.every few seconds B.every few minutes C.every 10 seconds D.every 10 minutes正确答案A
Updated AIS messages are transmitted to keep the information up-to-date.(1.0)
A.every few seconds B.every few minutes C.every 10 seconds D.every 10 minutes正确答案A