A.the assistant officer
B.the captain
C.the officer on duty
D.the third officer
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A.Both vessels
B.Neither vessel
C.The stand-on vessel
D.The giving-way vessel
A.in numbers
B.with marks
C.in block letters
D.with s mbols
A.shallow water ahead of you
B.submerged wreck ahead of you
C.risk of collision imminent
D.A, B, C are all right
A.in
B.on
C.out
D.about
A.declare
B.say
C.speak
D.tell
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