单项选择题
The rules require which factor to be taken into account when determining safe speed（）.
A.The construction of the vessel
B.The experience of the vessel's crew
C.The location of vessels detected by radar
D.All of the above
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相关考题
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单项选择题
The Navigation Rules state that a vessel shall be operated at a safe speed at all times so that she can be stopped within（）.
A.The distance of visibility
B.1/2 the distance of visibility
C.A distance appropriate to the existing circumstances and conditions
D.The distance that it would require for the propeller to go from full ahead to full astern -
单项选择题
The look-out must be able（）full attention to the（）of a proper look-out．
A.to give/keep
B.giving/keeping
C.giving/keep
D.to give/keeping -
单项选择题
She（the vessel）shall if necessary（）and in any event navigate with extreme caution until danger of collision is over.
A.take all her way off
B.take her way all off
C.take her way off
D.take off her all way
