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单选题
You hear the fog signal of another vessel forward of your beam.Risk of collision may exist.You MUST（）.
A
Reduce speed to bare steerageway
B
Stop your engines
C
Begin a radar plot
D
All of the above
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单选题You are in restricted visibility and hear a fog signal forward of the beam. Nothing appears on your radar screen. You must（）.A
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reduce your speed to bare steeragewayC
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单选题Approaching an anchorage in fog，you hear one short，one prolonged，and one short blast in that sequence on a ship’s whistle． This indicates（）.A
A vessel towedB
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单选题A vessel is “in sight” of another vessel when（）.A
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单选题Which statement concerning maneuvering in restricted visibility is FALSE?（）.A
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单选题In reduced visibility，you hear two prolonged blasts of a whistle. This signal is sounded by a （）.A
power-driven vessel dead in the waterB
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vessel not under commandD
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