A、A.shows a light with varying lengths of the lighted period
B、B.shows a light that changes color
C、C.marks an alternate lesser-used channel
D、D.is used as a replacement for another light
更多“An alternating light（）.”相关的问题
A、A.alternating red and yellow light B、B.alternating white and yellow light C、C.all-round white or yellow light D、D.all-round white light only
A、all-round yellow light only B、all-round white light only C、all-round blue light only D、alternating red and yellow light
A、The light is characterized as alternately flashing B、The lighthouse has lost power and has switched to emergency lighting C、It is the identifying light characteristic of the lighthouse D、You have entered an area of shoal water or other hazard
A、the light is characterized as alternately flashing B、the lighthouse has lost power and has switched to emergency lighting C、it is the identifying light characteristic of the lighthouse D、you have entered an area of shoal water or other hazard
A、A sternlight only B、Anchor lights only C、A white light over a red light only D、A white light over a red light and anchor lights
A、Three lights in a vertical line，the highest and lowest red and the middle white，and anchor lights B、Three lights in a vertical line，the highest and lowest red and the middle white，ONLY C、Anchor lights ONLY D、Anchor lights and sidelights ONLY
客服
TOP
查看正确答案
