单项选择题
A.all mooring lines have a different tension
B.the leeward lines have higher tension than the windward lines
C.the maximum tension of the most heavily loaded line does not exceed the safe working load
D.all horizontal tension forces on the windward lines are no greater than the vertical tension forces
单项选择题 During oil transfer operations，who is responsible for ensuring that the posted transfer procedures are followed?（）
单项选择题 During jacking operations and transit，empty void spaces in the hull of a jack up ship provide（）.
单项选择题 During daylight savings time the meridian used for determining the time is located farther（）.