With the help of GMDSS()can be alerted to a distress incident as soon as possible.
The control of distress traffic is the responsibility of().
GIVE DISTRESS SIGNALS FOR IDENTIFICATION.的意思是:发出遇险求救信号。
All of the following are distress signals under the Rules EXCEPT().
The service life of distress signals must be not more than().
When you are firing a pyrotechnic distress signal,it should be aimed().
If no distress acknowledgement is received()a DSC distress call transmission, then the ship in distress may repeat the DSC distress call attempt after a delay of between 3.5 and 4.5 minutes from the beginning of the initial call.
Which is NOT a distress signal?()
To proceed to the assistance of a ship in distress is()
When should you use distress flares and rockets?()