单选题You have berthed in a area with other tank vessels. What signal is displayed by a vessel to indicate it is transferring flammable or combustible liquid cargo?（）.AA flashing yellow lightBA red light visible all around the horizonCA green light visible all around the horizonDAn illuminated red and yellow caution flag
单选题
You have berthed in a area with other tank vessels. What signal is displayed by a vessel to indicate it is transferring flammable or combustible liquid cargo?（）.
A
A flashing yellow light
B
A red light visible all around the horizon
C
A green light visible all around the horizon
D
An illuminated red and yellow caution flag
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