show a fixed red light if lighted
show a Morse (A) white light
be square in shape
have an even number if numbered
船舶左舷的艉部叫左艉舷。（）A、The forward part of a vessel on the starboard side is called starboard quarter.B、The aft part of a vessel on the starboard side is called port quarter.C、The aft part of a vessel on the port side is called port quarter.D、The forward part of a vessel on the port side is called port quarter.
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VESSEL CROSSING FROM STARBOARD SIDE.的意思是：船舶处于右舷交叉相遇。
单选题A red triangular daymark marks（）.A the centerline of a navigable channelB the starboard side of a channelC a prominent object of navigational interest that has no lateral significanceD area of a channel where passing another vessel is permitted
判断题VESSEL CROSSING FROM STARBOARD SIDE.的意思是：船舶处于右舷交叉相遇。A 对B 错
单选题Entering from seaward，triangular-shaped daymarks are used to mark（）.A the starboard side of the channelB the centerline of the channelC an obstruction where the preferred channel is to starboardD special purpose areas
单选题When entering from seaward，a buoy displaying a single-flashing red light would indicate （）.A a junction with the preferred channel to the leftB a sharp turn in the channel to the rightC the starboard side of the channelD a wreck to be left on the vessel's port side
单选题Inclination of the vessel to port side or starboard side defines（）.A TipB CapsizeC ListD Trim
