航海英語GMDSS單項選擇題每日一練(2019.01.08)

來源：考試資料網

1 International Navtex service is（）.

2 We（）the distress signal on our own radio before the shore station relayed it to us.

3 In INMASAT-A service code 32（）.

4 There is actually an overlapped area of（）ocean regions somewhere in Western European Waters.

5 The beacon located on board aircraft is termed（）.