單項選擇題

When two vessels are in sight of one another and NOT in or near an area of restricted visibility，any of the following signals may be given EXCEPT（）.

A.a light signal of at least five short and rapid flashes
B.one prolonged，one short，one prolonged，and one short whistle blasts
C.four short whistle blasts
D.two short whistle blasts

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單項選擇題

When taking action to avoid collision，you should（）.

A.Make sure the action is taken in enough time
B.Not make any large course changes
C.Not make any large speed changes
D.All of the above

單項選擇題

When ship at anchor she shall be deemed to be（）.

A.Not under-way
B.Not under command
C.Restricted in her ability to maneuver
D.A non-displacement ship

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When two vessels are in sight of one another and NOT in or near an area of restricted visibility，any of the following signals may be given EXCEPT（）.

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When taking action to avoid collision，you should（）.

When ship at anchor she shall be deemed to be（）.

When two vessels are in sight of one another and NOT in or near an area of restricted visibility，any of the following signals may be given EXCEPT（）.

When taking action to avoid collision，you should（）.