單項(xiàng)選擇題

The Rules state that certain factors are to be taken into account when determining safe speed. One of the factors is the（）.

A.radio communications that are available
B.maximum speed of your vessel
C.temperature
D.current

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The rules require that a stand-on vessel SHALL take action to avoid collision when she determines that（）.

A.risk of collision exists
B.the other vessel will cross ahead of her
C.the other vessel is not taking appropriate action
D.collision cannot be avoided by the give-way vessel's maneuver alone

單項(xiàng)選擇題

The risk of collision shall be deemed to exist if the compass bearing of an approaching vessel （）.

A.did not appreciably change
B.does not appreciably change
C.do not appreciably change
D.not appreciably change