A.concentrated high and the double bottoms emptyB.conce……

单项选择题A vessel is listed when it is（）.

A.down by the head
B.down by the stern
C.inclined due to off-center weight
D.inclined due to wind

单项选择题A vessel aground may have negative GM since the（）.

A.decrease in KM is equal to the loss of draft
B.virtual rise of G is directly proportional to the remaining draft
C.lost buoyancy method is used to calculate KM，and KB is reduced
D.displacement lost acts at the point where the ship is aground

单项选择题A quick and rapid motion of a vessel in a seaway is an indication of a(n)（）.

A.large GM
B.high center of gravity
C.excessive free surface
D.small GZ

单项选择题A number of bags are worn-out（）a certain extent.

A.at
B.in
C.on
D.to

单项选择题Allowance for fresh water refers to（）.

A.the provision to be provided when the vessel sails in fresh water area
B.the fresh water to be carried by a vessel
C.the allowance of fresh water for each crew member when in distress at sea
D.the amount of free board decreased when sailing in fresh water area