If the weights are moved away from the midship section，（）will happen on board.

If the weights are concentrated in the middle part，then（）will happen on board the ship.

A.hogging
B.stiffness
C.sagging
D.listing

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If a vessel is sagging，what kind of stress is placed on the sheer strake?（）

A.Compression
B.Tension
C.Thrust
D.Racking

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