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單項(xiàng)選擇題

Commercial ships or other persons or agencies requiring the assistance of Canadian Coast Guard icebreakers should first contact（）.

A.the Canadian Coast Guard
B.Ice Sarnia
C.the Ice Navigation Center
D.the icebreaker assigned to the area

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單項(xiàng)選擇題

Coiling new rope against the lay，bringing the lower end up through the center of the coil，then coiling with the lay，in order to remove the kinks，is known as（）.

A.coiling
B.faking
C.flemishing
D.thoroughfooting

單項(xiàng)選擇題

Coast Pilots and navigational charts are kept corrected and up-to-date by using the（）.

A.pilot charts
B.Notices to Mariners
C.Tide Tables
D.Current Tables

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