Two degrees port off the （）.

单项选择题Watch your （）!

A.wheel
B.steering
C.helm
D.rudder

单项选择题（） to the lighthouse!

A.Heading
B.Head
C.Forward
D.Ahead

单项选择题Slow ahead（）engines!

A. with
B. both
C. and
D. to

单项选择题The pilot needs the ship to go forward very slowly. The order should be （）.

A. “Slow ahead”
B. “Dead slow ahead”
C. “Astern”
D. “Dead slow astern”

单项选择题Stand （）engine !

A.with
B.by
C.in
D.to