单项选择题
--- Starboard twenty! ---Reply: Starboard twenty! ---Report: ()
A. Twenty starboard. B. Wheel is starboard twenty. C. Twenty. D. OK!
单项选择题 ---Midship! ---Reply: () ---Report: Wheel midship.
单项选择题 ---Starboard 10! ---()!
单项选择题 --- Midships! ----Midships!()