單項(xiàng)選擇題

We must（）the mooring lines when the tide rises and falls.

A. slack away
B. take on
C. take in
D. adjust

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單項(xiàng)選擇題

Mooring lines（） were let go.

A. for and aft
B. from and aft
C. fore and aft
D. for and after

單項(xiàng)選擇題

Lower the（）to the tug.

A. towing line
B. slip line
C. breast line
D. spring line