GMDSS的主要功能是A．日常通信B．驾驶台与驾驶台之间通信C．遇险船舶的可靠报警D．海上安全信息的播发和接收
GMDSS的主要功能是
A．日常通信
B．驾驶台与驾驶台之间通信
C．遇险船舶的可靠报警
D．海上安全信息的播发和接收
参考答案和解析
B
相关考题：
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单选题Which statement concerning GMDSS Radio Operator requirements is FALSE（）.AEach compulsory vessel must carry at least two licensed GMDSS Radio Operators at all times while at seaBEach compulsory vessel must carry at least two licensed Radio Operators at all times while at sea and may elect to carry a GMDSS Radio Maintainer as wellCCommunications involving safety of life at sea do not have to be logged as long as the compulsory vessel was not involved in such communicationsDWhile at sea，adjustments to，and the maintaining of，GMDSS equipment may be performed by the GMDSS Radio operator as long as the work is supervised by an onboard licensed GMDSS Radio Maintainer
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