遇险用语题库
总共有 47 条题目
遇险用语题库
刷题
The service life of distress signals must
What is NOT a distress signal?（） A.A conti
When two vessels are in immediate danger o
On every vessel，distress signals must be s
When you are firing a pyrotechnic distress
AS SOON AS I HAVE FURTHER INFORMATION I WI
The color of rockets，shells，or rocket para
If you are transmitting a distress message
Whenever your marine radio is on，FCC Rules
What is NOT a distress signal?（） A.Red fla
The distress message of a ship should incl
The radiotelegraph alarm signal may be use
If we had stayed at that port much longer，
If you hear the firing of a gun at one min
If an airplane circles a vessel 3 times，cr
