单项选择题
---Ease the helm! ---Reply: Ease the helm! ---Report: （）.
A. Wheel is midships B. Course 020 degrees C. Steady D. In position
---Ease to five! ---Reply: Ease to five! ---Report: （）....
---Ease to five! ---Reply: Ease to five! ---Report: （）.
A. Ease to five B. Port five C. Five D. Yes
--- Starboard twenty! ---Reply: Starboard twenty! ---Re...
--- 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!
