A.will be coming to periscope depth
B.will be coming to the surface
C.is on the bottom in distress
D.is in distress and will try to surface
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A.need not show the lights for a vessel engaged in towing，if it is impractical to do so
B.may show the lights for a vessel not under command
C.must show a yellow light above the stern light
D.must show the lights for a vessel towing
A.fishing
B.in distress
C.at anchor
D.not under command
A.engaged in piloting
B.towing astern
C.engaged in fishing
D.in distress
A.avoid cross
B.avoid to cross
C.avoid crossly
D.avoid crossing
A.Sound one blast of the whistle
B.Alter course to starboard
C.Construct a radar plot
D.Sound the danger signal
最新試題
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 are under sail and overtaking a tug and tow.Which action is correct（）.
When underway in a channel，you should keep to the（）.
When one upbound vessel is overtaking another vessel and both are pushing a tow ahead，what reaction may you expect（）.
Which statement correctly applies to a situation where a sailing vessel is overtaking a power-driven vessel（）.
When shall the stand-on vessel in a crossing situation take action to avoid the other vessel（）.
Your vessel is not underway when（）.
Which statement is TRUE，according to the Rules（）.
Underway at night，a vessel displaying the lights shown is（）.
When you doubt the existence of risk of collision,（）.