右舵10。A.Port ten.B.Port slow.C.Port fiveD.Starboard ten.

A.The captain is the head of a ship.

B.The master is the head of a ship.

C.The deck department is under the command of the chief officer.

D.The pilot is the head of a ship.

A.There are nine people in the deck department.

B.The department has nine people

C.There are nine people in the deck de

D.The deck has nine people

A.Dead slow astern.

B.Slow astern.

C.Half astern.

D.Slow ahead

A.Full astern！

B.Double full astern！

C.Emergency full astern！

D.Emergency three astern！