单项选择题
A.Galley fitted with range or oven B.Open structures C.Passenger spaces D.Boatswain's stores
Which space（s）is（are）deducted from gross tonnage to der...
单项选择题Which space（s）is（are）deducted from gross tonnage to derive net tonnage（）.
A.Boatswain's stores B.Companions and booby hatches C.Passenger spaces D.All of the above
Which space cannot be deducted from gross tonnage when ...
单项选择题Which space cannot be deducted from gross tonnage when calculating net tonnage（）.
A.Crew messroom B.Forepeak ballast tank C.Master's cabin D.Chain locker
Which of the following tensioning devices is used with ...
单项选择题Which of the following tensioning devices is used with webbing to secure light vehicles aboard Ro-Ro vessels（）.
A.Chain lever B.Buckle tensioner C.Adjust-a-matic tensioner D.Turnbuckle
