单项选择题
Fighting a rig fire in a watertight compartment with hoses could reduce the stability of the rig by（）.
A.progressive downflooding B.reducing the level of drill water from the storage tanks C.causing a list due to the water in the compartment D.reducing the KG to minimum allowable
单项选择题 Each OSV must carry（）.
单项选择题 Each life preserver must be readily accessible to the person for whom it is intended while he or she is（）.
单项选择题 Each hose used for transferring vapors must（）.
