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單項(xiàng)選擇題

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

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單項(xiàng)選擇題

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（）.

A.S
B.T
C.W
D.F

單項(xiàng)選擇題

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（）.

A.S
B.T
C.W
D.F

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