A、flashes at regular intervals at a frequency of 120 flashes or more per minute
B、is yellow in color
C、is visible over an arc of the horizon of not less than 180°nor more than 225°
D、All of the above
更多“A flashing light is a light that（）.”相关的问题
A、blue rotating light B、intermittent flashing amber/yellow light C、flashing white light D、flashing sidelight
A、A.Group flashing B、B.Composite group flashing C、C.Interrupted quick flashing D、D.Fixed and flashing
A、white light whose characteristic is Morse (A) B、group-occulting white light C、composite group-flashing (2 + 1) white light D、composite group-flashing (2 + 1) red or green light
A、flashing amber light B、yellow light with the same characteristics as the sternlight C、all-round yellow light D、yellow light with the same characteristics as the masthead light
A、Black and white stripes with an interrupted quick flashing light B、Black and red stripes with a Morse (A) light C、Black and red stripes with an interrupted quick flashing light D、Red and white stripes with a Morse (A) light
A、A flashing light combined with a fixed light of greater brightness B、Light flashes combined in groups，with a different number of flashes in each group C、A light showing groups of two or more flashes at regular intervals D、A fixed light varied at regular intervals by groups of two or more flashes of greater brightness
A、A.Three white lights in a vertical line are lit B、B.A red light starts to flash at about 60 times a minute C、C.A yellow light is illuminated on the bridge pier D、D.There is a range of green lights under the lift span
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