单项选择题
A.The quarantine officers B.Administrations C.The immigration officers D.The customs officers
You are about to cross a narrow channel when you see an...
单项选择题You are about to cross a narrow channel when you see an approaching vessel that can only be navigated safely within the channel.You should（）.
A.cross the channel as you are the stand-on vessel B.cross only if the vessel in the channel is approaching on your port side C.not cross the channel if you might impede the other vessel D.sound the danger signal
Between April and November, squalls（）as Sumateras（）in M...
单项选择题Between April and November, squalls（）as Sumateras（）in Malacca Strait in the late afternoon or overnight and（）E to affect the W coast of Malaysia and Singapore Island.
A.known, developing, move B.known, developed, move C.known, develop, moving D.known, develop, move
You are underway in thick fog.You have not determined i...
单项选择题You are underway in thick fog.You have not determined if risk of collision exists.Which statement is true?（）
A.Your speed must be reduced to bare steerage ways B.A look-out is not required if the radar is on C.The radar should always be kept on a short-range scale D.Fog signals are only required when a vessel is detected by radar
