单项选择题
A.the tallying work
B.the lashing work
C.the clean work
D.the work of opening and closing hatches
单项选择题 You can hardly complete the loading at No.2 hatch,（）you?
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?（）.