单项选择题

Which space(s)is(are)deducted from gross tonnage to derive net tonnage ________.
A.Galley fitted with range or oven
B.Open structures
C.Passenger spaces
D.Boatswain's stores

A.A.Galley
B.Open
C.Passenger
D.Boatswain's
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单项选择题
A.B.C.D.
A.
B.
C.
D.