单项选择题
A vessel is in sight of another vessel when（）.
A.she can be observed by radar
B.she can be observed visually from the other vessel
C.she can be plotted on radar well enough to determine her heading
D.her fog signal can be heard
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单项选择题
A vessel is approaching from dead ahead． Both of her sidelights are visible and her range lights are in line. Which of the following could you do first?（）.
A.Sound one blast of the whistle
B.Alter course to starboard
C.Construct a radar plot
D.Sound the danger signal -
单项选择题
A vessel has sustained damage in a collision with another vessel. It is necessary to have a Seaworthy Certificate before the vessel sails. Who will issue this certificate?（）
A.American Consul
B.Classification Society
C.Captain of the Port
D.Officer in Charge，Marine Inspection -
单项选择题
A vessel engaged in fishing underway sounds the same fog signal as a（）.
A.power-driven vessel stopped and making no way through the water
B.vessel being towed
C.vessel restricted in her ability to maneuver at anchor
D.sailing vessel at anchor
