An all-round flashing yellow light may be exhibited by a(n)（）.<br>A:vessel laying cable<br>B:vessel towing a submerged object<br>C:vessel not under command<br>D:air cushion vessel

An all-round flashing yellow light may be exhibited by a(n)（）.
A:vessel laying cable
B:vessel towing a submerged object
C:vessel not under command
D:air cushion vessel

出自：海船船员证

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