A vessel sighting a northern right whale dead ahead should（）.<br>A:maintain course and speed<br>B:alter course to give a wide clearance<br>C:report the whale's position to the Canadian Coast Guard<br>D:All of the above

A vessel sighting a northern right whale dead ahead should（）.
A:maintain course and speed
B:alter course to give a wide clearance
C:report the whale's position to the Canadian Coast Guard
D:All of the above

出自：海船船员证

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