单项选择题
Generally speaking , the heavier cargo will go into the（）,distributing it evenly fore and aft, the lighter cargo will probably be placed in the（）.
A.deep tanks/lower holds B.lower holds/tweendecks C.tweendecks/deep tanks D.deep tanks/tweendecks
单项选择题 Holes in the bulwark,Which allow deck water to drain into the sea, are（）.
单项选择题 How should cargo tank hatches be protected when the ullage opening is open and the tank not gas free?（）.
单项选择题 Hygroscopic cargoes should be ventilated when（）.
