单项选择题
A.forecastle B.tweendeck C.hatches D.peak tanks
When the density of water is 1000,i.e.in fresh water an...
单项选择题When the density of water is 1000,i.e.in fresh water and in summer zone a ship may load to the upper edge of the line marked（）.
A.S B.T C.W D.F
When a ship in winter zone and in seawater of density10...
单项选择题When a ship in winter zone and in seawater of density1025,she must not load to more than the upper edge of the line marked（）.
When a ship is in summer zone and in seawater of densit...
单项选择题When a ship is in summer zone and in seawater of density1025,she must not load to more than the upper edge of the line marked（）.
