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單項(xiàng)選擇題

A tank which carries liquid is dangerous to the stability of a vessel when it is（）.

A.low in the vessel
B.completely empty
C.completely full
D.slack

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單項(xiàng)選擇題

A semisubmersible which will not remain upright and will assume a list either to port or starboard is likely to have（）.

A.a large TCG
B.a negative GM
C.excessive ballast
D.insufficient deck load

單項(xiàng)選擇題

A disk with a horizontal line through its center，equivalent to the summer load line，is called the（）.

A.deadrise mark
B.maximum allowable draft mark
C.plimsoll mark
D.tonnage mark

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