A、Between sunset and sunrise
B、Only between 8 AM and 4 PM
C、During daylight hours in any visibility
D、During daylight hours in unrestricted visibility only
更多“Day-shapes must be displayed（）.”相关的问题
A、between sunset and sunrise B、only between 8 AM and 4 PM C、during daylight hours in any visibility D、during daylight hours in unrestricted visibility only
A、American Bureau of Shipping classification rules B、International Regulations for Preventing Collisions at Sea C、Safety of Life at Sea Convention D、Minerals Management Service rules
A、three shapes，the highest and lowest shall be red balls，and the middle shall be a white diamond B、two black balls C、three shapes; the highest and lowest shall be black balls，and the middle shall be a red diamond D、three shapes; the highest and lowest shall be black balls and the middle shall be a black diamond
A、A.Three shapes，the highest and lowest shall be red balls，and the middle shall be a white diamond B、B.Two black balls C、C.Three shapes；the highest and lowest shall be black balls，and the middle shall be a red diamond D、D.Three shapes；the highest and lowest shall be black balls and the middle shall be a black diamond
A、vessel trolling B、mineclearing vessel C、trawler D、vessel engaged in replenishment at sea
A、must be displayed when day signals are being used B、must be displayed when moored to a pier C、may be extinguished at night on open waters when no other vessels are in the area D、may be displayed during daylight
A、two black balls in a vertical line B、three black balls in a vertical line C、three shapes in a vertical line； the highest and lowest shall be red balls and the middle a white diamond D、three black shapes in a vertical line； the highest and lowest shall be balls and the middle one a diamond
A、during the day，three balls in a vertical line B、during the day，three shapes，the highest and lowest being balls and the middle being a diamond C、when making way at night，two all-round red lights，sidelights，and a sternlight D、when making way at night，masthead lights，sidelights，and a sternlight
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