单项选择题
The most variable factor in the control of broken stowage is（）.
A.the use of excessive amounts of dunnage B.the use of excessive amount of filler cargo C.the failure to stow some item in neat and uniform rows and tiers D.the skill, industry and interest of the longshoremen
单项选择题 The net productivity per gang-hour can be improved through a decrease of（）.
单项选择题 The patches where rust have been removed should be wiped clean before paint is（）.
单项选择题 The permant dunnage attached to the frames of the ship that aids in ventilation is (are) the（）.
