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单选题
What is the fundamental purpose for imposing radio silence? （）
A
To ensure that interference to proprietary communications is minimized
B
To ensure that only voice communications can be effected on the distress frequency or channel
C
To ensure that a distressed vessel will have a window twice each hour for transmitting routine messages
D
To ensure that interference on a particular frequency or channel to communications concerning emergency traffic is minimized
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更多 “单选题What is the fundamental purpose for imposing radio silence? （）A To ensure that interference to proprietary communications is minimizedB To ensure that only voice communications can be effected on the distress frequency or channelC To ensure that a distressed vessel will have a window twice each hour for transmitting routine messagesD To ensure that interference on a particular frequency or channel to communications concerning emergency traffic is minimized” 相关考题
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