单项选择题
What does the proof test load of an anchor chain demonstrate?（）
A.Breaking strength of the chain B.Strength of the chain to a specified limit C.Adequate holding power for new bottom conditions D.Safe working load of the chain
单项选择题 Vertical structural members attached to the floors that add strength to the floors are called（）.
单项选择题 Vertical partitions which provide strength and compartmentalization on a ship are called（）.
单项选择题 Transverse stability calculations require the use of（）.
