单项选择题 My ship’s engine responds well to telegraph orders and takes about 80 seconds to reverse from full speed ahead to full speed astern. This sentence（）.

单项选择题 Nasha verella st Jacques zenmu ansha reep cloudy to overcast with showers wind sw 17 to 21sea mod vis good to mod .The abovementioned forecast is probably from（）.

单项选择题 No navigational aids are shown and chart is not kept（）for alterations in depths inside the pecked lines joining Hurst pt. to Warden pt.