单项选择题
A.SOS，ZZZ，XXX B.SOS，UUU，SSS C.SOS，XXX，TTT D.SOS，TTT，UUU
The most likely time for oil pollution while bunkering ...
单项选择题The most likely time for oil pollution while bunkering is when（）.
A.final topping off is occurring B.first starting to receive fuel C.hoses are being blown down D.hoses are disconnected and being capped
Smoking in bed on a ship is prohibited（）.A.at all times...
单项选择题Smoking in bed on a ship is prohibited（）.
A.at all times B.during evening hours C.unless another person is present D.during drilling operations
Should the vessel have no deratisation certificate at t...
单项选择题Should the vessel have no deratisation certificate at the time of her delivery，she（）be held to be unseaworthy.
A.shall B.should C.may D.would
