单项选择题
A.a curve of minimum operational metacentric height（GM）versus draught
B.instructions concerning the operation of cross-flooding arrangements
C.the signals or lights being exhibited or sounded
D.all other data and aids which might be necessary to maintain stability after damage
单项选择题 Which document lists all the lifesaving equipment required for a vessel? （）
单项选择题 Where will you find the requirements for the signals that must be sounded by a mobile offshore drilling unit that is being towed through an area of restricted visibility? （）
单项选择题 What is the period of validity of the SOLAS required Cargo Ship Safety Construction Certificate? （）