你可能感興趣的試題

In launching a lifeboat,when should the tricing pendants be released?（）.

A.Before the boat is lowerd from the stowage position
B.As soon as the boat-fall blocks clear the davit head
C.After the limit switch is activated
D.After all people have been embarked

單項(xiàng)選擇題

In nautical terminology a dog is a（）.

A.crow bar
B.device to force a water tigh door against the frame
C.heavy steel beam
D.wedge