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單項(xiàng)選擇題

When the ship is alongside a wharf, we put the （）on the moorings.

A. rat guards
B. anchor ball
C. deck light
D. bollard

單項(xiàng)選擇題

“Single up forward to headline and spring!” means “ （）”.

A. Unmoor all lines except the headline and forward spring.
B. Moor all lines except the headline and forward spring.
C. Hold on all lines except the headline and forward spring.
D. Let go the headline and forward spring.