DSC distress acknowledgements are normally
题型:单项选择题
问题:
DSC distress acknowledgements are normally transmitted by()in respond to a receiver DSC distress call.
A.Ship stations
B.Coast stations
C.NCSs
D.NCC
DSC distress acknowledgements are normally transmitted by()in respond to a receiver DSC distress call.
A.Ship stations
B.Coast stations
C.NCSs
D.NCC