单项选择题
Filler cargo refers to（）.
A.durable package B.small pieces C.the cargo in which the void appear D.the cargo suitable for stowage in void spaces
单项选择题 Flame screens are used to（）.
单项选择题 Flooding of any compartment in a ship that results in a serious loss of reserve buoyancy will always（）.
单项选择题 Floors aboard ship are（）.
