单项选择题
A.can be overcome by using traditional techniques
B.can not be overcome by satellite system
C.can be overcome by satellite and digital techniques
D.can not be tackled by any modern system
单项选择题 When receiving a distress alert, the SAR authorities ashore and the ships in the vicinity of the ship in distress will（）in a coordinated search and rescue operation with the minimum delay.
单项选择题 For ship-to-shore distress alerts, you can use（）.
单项选择题 Every ship shall carry personnel qualified for（）to the satisfaction of the Administration.