An orange flag showing a black circle and square is a（）.<br>A:signal indicating a course change<br>B:distress signal<br>C:signal of asking to communicate with another vessel<br>D:signal indicating danger

An orange flag showing a black circle and square is a（）.
A:signal indicating a course change
B:distress signal
C:signal of asking to communicate with another vessel
D:signal indicating danger

出自：海船船员证

提示：
同一【IP】的非会员用户每天可免费获取10次答案

收藏本站【zk.995w.com】，下次访问不迷路

本站试题总数:【10250343】个 (题库试题定时更新)