单项选择题
It is the responsibility of the person in charge to（）.
A.revise the operating manual when rig personnel change B.be fully aware of the provisions in the operating manual C.maintain the rig's construction portfolio D.All of the above
单项选择题 It is the responsibility of the Master or person in charge of a ship to ensure that（）.
单项选择题 It is the chief mate’s job（）the tank cleaning operation．
单项选择题 It is requested that the ship’s personnel are（）the port regulations.
