单项选择题
A. Bow stern full to port! B. Bow stern half to port! C. Stern thrust half to starboard ! D. Stern thrust full to port!
尾推半速向右！（）A. Bow stern full to port!B. Bow stern half to...
单项选择题尾推半速向右！（）
A. Bow stern full to port! B. Bow stern half to port! C. Stern thrust half to starboard ! D. Bow thrust full to port!
首推半速向右！（）A. Bow stern full to port!B. Bow stern half to...
单项选择题首推半速向右！（）
A. Bow stern full to port! B. Bow stern half to port! C. Bow thrust half to starboard ! D. Bow thrust full to port!
首推全速向右！（）A. Bow stern full to port!B. Bow stern half to...
单项选择题首推全速向右！（）
A. Bow stern full to port! B. Bow stern half to port! C. Bow thrust full to starboard ! D. Bow thrust full to port!
