单选题Every vessel shall at all times proceed at a safe speed so that she can（）.Atake proper and effective action to avoid collisionBbe stopped within a distance appropriate to the prevailing circumstances and conditionsCneither A nor BDboth A and B
单选题
Every vessel shall at all times proceed at a safe speed so that she can（）.
A
take proper and effective action to avoid collision
B
be stopped within a distance appropriate to the prevailing circumstances and conditions
C
neither A nor B
D
both A and B
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