单项选择题
（）communication are intership VHF radio telephone communication.
A.ship-to-shore B.shore-to –ship C.bridge-to-bridge
单项选择题 From IMO’S point of view, INMARSAT’s most important function is the provision of（）.
单项选择题 （）is the united nations agency responsible for the Radio Regulations among other things.
单项选择题 The purpose of the GMDSS is to（）safety of life and property at sea all over the world.
