If we have a pilot on board , we should take down （） and hoist （） .（）

单项选择题When the anchor reaches the bottom ,hoist the anchor （）by day.

A.ball
B.flag
C.light
D.lamp

单项选择题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 .

单项选择题Letter “H” means“（）”.

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

单项选择题Letter “Q” means “（）”.

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

单项选择题Mind your head .I am dropping the（） now!

A. heavy line
B. heaving line
C. head line
D. wire rope