单项选择题
--- Starboard twenty! ---Reply: Starboard twenty! ---Report: （）
A. Twenty starboard. B. Wheel is starboard twenty. C. Twenty. D. OK!
---Midship! ---Reply: （） ---Report: Wheel midship. A...
---Midship! ---Reply: （） ---Report: Wheel midship.
A. OK ! B. Yes! C. Midship! D. Got it!
---Starboard 10! ---（）! A. Wheel starboard tenB. Sta...
---Starboard 10! ---（）!
A. Wheel starboard ten B. Starboard 10 C. Starboard is10 D. Here it goes
--- Midships! ----Midships!（） A. Wheel’s midships!B....
--- Midships! ----Midships!（）
A. Wheel’s midships! B. Course on. C. Wheel's well！ D. OK.
