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
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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
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
最新試題
Under what condition are you allowed to depart from the rules of the road（）.
Which statement correctly applies to a situation where a sailing vessel is overtaking a power-driven vessel（）.
You are under sail and overtaking a tug and tow.Which action is correct（）.
When shall the stand-on vessel in a crossing situation take action to avoid the other vessel（）.
When underway in a channel，you should keep to the（）.
Which one of the following rules is not regarding two power-driven vessels meeting end or nearly end on so as to involve risk of collision（）.
You see a vessel carrying a black diamond which indicates a（）.
Which display indicates a vessel conducting mineclearance operations（）.
You are aboard the give-way vessel in a crossing situation．What should you NOT do in obeying the Rules（）.
When one of two vessels（）is required to keep out of the way the other must keep her course and speed.