The bosun is good at（）(打绳结).

单项选择题The third officer is （） (负责)the fire-fighting equipment.

A. responsible
B. take charge of
C. in charge of
D. control

单项选择题（）(舵角多少)？ ----Twenty degrees on port.

A. How answers
B. What rudder
C. How rudder
D.B+C

单项选择题（）（尾推）stop。

A. Bow thrust
B. Bow thruster
C. Stern thrust
D. Stern thruster

单项选择题（）（首推）stop.

A. Bow thrust
B. Bow thruster
C. Stern thrust
D. Stern thruster

单项选择题Ease to five! （）(右舵5)!

A. Port five
B. Starboard five
C. Starboard ten
D. Right five