单项选择题
A.optional cargo should be B.should optional cargo be C.should be optional cargo D.should optional cargo
0f the following, the most important consideration for ...
单项选择题0f the following, the most important consideration for a tank vessel is（）.
A.GM B.the vertical center of gravity C.the longitudinal center of gravity D.the stress on the hull
0f the general methods of stowing bagged cargo, which a...
单项选择题0f the general methods of stowing bagged cargo, which allows maximum ventilation?（）.
A.Brick method B.Cross tier method C.Full-bag method D.Half-bag method
0il product samples should be taken from the（）.A.dock r...
单项选择题0il product samples should be taken from the（）.
A.dock riser B.ships cargo tanks C.shore tank discharge D.All of the above
