单项选择题
A.solid yellow B.white with orange geometric shapes C.red and white vertically-striped D.green and red horizontally-banded
Most totally enclosed lifeboats are equipped with which...
单项选择题Most totally enclosed lifeboats are equipped with which of the following? （）
A.Tanks for the storage of drinking water B.Ballast tanks to prevent the boat from capsizing C.A hydraulic start diesel engine D.Auxiliary mechanical propulsion (Fleming gear)
May I have a copy of the cargo plan?Certainly，here（）.A....
单项选择题May I have a copy of the cargo plan?Certainly，here（）.
A.is it B.are you C.they are D.you are
Masts and derricks of cargo ships are made of（）.A.steel...
单项选择题Masts and derricks of cargo ships are made of（）.
A.steel B.copper C.bross D.zinc
