A、During the hours of darkness
B、At all times when underway
C、From sunset to sunrise and restricted visibility
D、Sunrise to sunset
更多“According to the Rules，when should lights be displayed?（）.”相关的问题
A、be treated according to the C-Es command exactly B、be treated according to MARPOL C、accumulate in bilges or on tank tops in accordance with MARPOL D、discharge to sea at the specified areas
A、they are used B、the field windings are connected to the load C、the armature circuit is connected to the load D、the field windings are connected to the armature circuit
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