单项选择题
A. Sailors are always on watch on the bridge. B. Deck officers are always on watch on the bridge. C. Sailors are never on watch on the bridge. D. Deck officers are never on watch on the bridge.
后退一！（）A. Full ahead!B. Slow astern!C. Half astern!D. De...
单项选择题后退一！（）
A. Full ahead! B. Slow astern! C. Half astern! D. Dead astern!
后退二！（）A. Full ahead!B. Slow astern!C. Half astern!D. Ah...
单项选择题后退二！（）
A. Full ahead! B. Slow astern! C. Half astern! D. Ahead three!
尾推全速向左！（）A. Bow stern full to port!B. Bow stern half to...
单项选择题尾推全速向左！（）
A. Bow stern full to port! B. Bow stern half to port! C. Stern thrust half to starboard ! D. Stern thrust full to port!
