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單項選擇題

（）is placed in the front of the ship under the water,which eases berthing or ma-noeuvering sideways at slow speed.

A.The bulbous bow
B.The anchor
C.The bow thurster
D.The propeller

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單項選擇題

（）is a roud-shaped underwater part in the front of the ship.The purpose is to cre-ate less friction with water so that the ship moves more easily.

A.The bulbous bow
B.The anchor
C.The bow thruster
D.The propeller

單項選擇題

（）is used to moor the ship to the seabed to keep it sationary.

A.The bulbous bow
B.The anchor
C.The bow thruster
D.The propeller

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