A sail hook is used for（）.

A.overhead safety straps
B.built in seats
C.internal releasing hooks
D.water stabilizing pockets

A.Protest acts of violence or misconduct by the vessel's crew
B.State that damage to cargo or vessel was caused by improper loading or pilferage by others rather than ship's personnel
C.State that the damage to ship，cargo or both was due to the perils of the sea
D.State that the perishable cargo was damaged because of negligence by port authorities or other officials

A.portions of his vessel's cargo were illegally impounded
B.longshoreman went on strike against the overtime
C.the vessel encountered heavy weather which might have caused some damages to her
D.a wreck of fishing boat was located on the voyage