A.detected
B.decided
C.directed
D.deceased
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A.in fog
B.at night
C.in narrow fairway
D.at all times
A.Three shapes，the highest and lowest shall be red balls，and the middle shall be a white diamond
B.Two black balls
C.Three shapes；the highest and lowest shall be black balls，and the middle shall be a red diamond
D.Three shapes；the highest and lowest shall be black balls and the middle shall be a black diamond
A.Snowfall or blowing snow
B.Lack of ability to estimate distance
C.Harsh contrast between sun-illuminated snow cover and the background
D.Hazy horizons with extensive mirage effects
A.Between sunset and sunrise
B.Only between 8 AM and 4 PM
C.During daylight hours in any visibility
D.During daylight hours in unrestricted visibility only
A.red lights
B.red lights and two white lights
C.red lights with a white light in between
D.white lights with a red light in between
最新試題
You are underway and approaching a bend in the channel where vessels approaching from the opposite direction cannot be seen．You should sound（）.
When shall the stand-on vessel in a crossing situation take action to avoid the other vessel（）.
When two vessels are in sight of one another and NOT in or near an area of restricted visibility，any of the following signals may be given EXCEPT（）.
You hear the fog signal of another vessel forward of your beam.Risk of collision may exist.You MUST（）.
When a vessel is in any doubt as to whether such a situation exists she shall（）that it does exist and act accordingly.
Which statement is TRUE，according to the Rules（）.
You see a vessel displaying three lights in a vertical line.The highest and lowest lights are red and the middle light is white.She is also showing a white light at the stern，which is lower than the forward light.It could be a（）.
Vessels should maintain a sharp lookout，especially during December through March，when navigating the right whale’s only known calving grounds which lie off the coasts of（）.
When underway in a channel，you should keep to the（）.
You are approaching another vessel and will pass starboard to starboard without danger if no course changes are made.You should（）.