单选题An anchored vessel on pilotage duty must show which light(s) at night? （）AA sternlight onlyBAnchor lights onlyCA white light over a red light onlyDA white light over a red light and anchor lights
单选题
An anchored vessel on pilotage duty must show which light(s) at night? （）
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
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