单项选择题 You have a quantity of bagged cargo to stow in a block in 3 UTD. Which stow will provode the maximum block stability ?（）.

单项选择题 You have berthed in a area with other tank vessels. What signal is displayed by a vessel to indicate it is transferring flammable or combustible liquid cargo?（）.

单项选择题 You must shift a weight from the upper tween deck to the lower hold. This shift will（）.