A.to be underway
B.on under way condition
C.to stop engine
D.in being under way
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A.the state of visibility
B.the power of the vessel
C.the traffic density
D.the maneuverability of the vessel
A.the presence of the background light at night
B.the state of wind，sea and current
C.the number of crew on board
D.the draught in relation to the available depth of water
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In dense fog a vessel without operational radar may not be justified（）at all but should anchor if it is safe and practicable for her to do so.
In a crossing situation，a stand-on vessel which is forced to take action in order to avoid collision with a vessel on her own port side shall，if possible，avoid（）.
A vessel conducting mine clearing operations will show（）.
A head-on situation at night is one in which you see（）.
A vessel engaged in fishing shall keep out of the way of a vessel（）.