单项选择题
A.identify B.identifier C.identity D.identification
I have（）you on my radar.A.seenB.sightedC.watchedD.locat...
单项选择题I have（）you on my radar.
A.seen B.sighted C.watched D.located
How long must the GMDSS radio log be retained on board?...
单项选择题How long must the GMDSS radio log be retained on board?（）
A.At least two years after the last entry B.At least one year after the last entry C.At least 90 days after the last entry D.At least 30 days after the last entry
How long must GMDSS Radio Logs be retained by the licen...
单项选择题How long must GMDSS Radio Logs be retained by the licensee when they relate to a distress situation or disaster? （）
A.6 months B.1 year C.2 years D.3 years
