问题
单项选择题
Three short blasts of the whistle means().
A.danger
B.I am in distress
C.the vessel is not under command (broken down)
D.I am operating astern propulsion
答案
参考答案:D
Three short blasts of the whistle means().
A.danger
B.I am in distress
C.the vessel is not under command (broken down)
D.I am operating astern propulsion
参考答案:D