Commercial ships or other persons or agencies requiring the assistance of Canadian Coast Guard icebreakers should first contact（）.<br>A:the Canadian Coast Guard<br>B:Ice Sarnia<br>C:the Ice Navigation Center<br>D:the icebreaker assigned to the area

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

出自：海船船员证

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