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單項(xiàng)選擇題

Letter “G” shows that“ （）”.

A. I have a pilot on board
B. I require a pilot.
C. I have stopped.
D. My vessel is healthy .

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單項(xiàng)選擇題

Letter “H” means“（）”.

A. I have a pilot on board
B. I require a pilot
C. I have stopped
D. My vessel is healthy

單項(xiàng)選擇題

Letter “Q” means “（）”.

A. Man overboard
B. You are running into danger
C. My vessel is healthy.
D.I require a pilot.