问题：
[单选题]A vessel showing a yellow light over a white light at night is a vessel（）.
A、engaged in piloting
B、towing astern
C、engaged in fishing
D、in distre
参考答案：
B
相关内容
- ● When a veel ee the other ahead or nearly ahead，by night he could ee the mathead light of the other in a line or nearly in a line or both ide light，（）hall be deemed to exit.
- ● A documented veel operating over 50 mile offhore mut carry an inflatable liferaft with a （）.
- ● When making landfall at night，you can determine if a light i a major light or an offhore buoy by（）.
- ● A veel may ue any ound or light ignal to attract the attention of another veel a long a（）.
- ● A veel howing a yellow light over a white light at night i a veel（）.
- ● A towing light i a yellow light having the ame characteritic a a(n)（）
- ● A veel howing a green light over a white light in a vertical line above the level of the idelight i（）.
- ● The Light Lit how a lighted aid to navigation on the left bank. Thi mean that the light can be een on the tarboard ide of a veel（）.
- ● A predictable reult of a veel nearing a bank or edge of a channel i that the（）.
- ● An all-round flahing yellow light may be exhibited by a(n)（）.
- ● An all-round flahing yellow light may be exhibited by a(n)（）.
- ● A fihing veel diplaying the light hown i（）.
