单选题 Distress signals are always stored in memory so as to start ____.

A、 local-mode coverage

B、 SAR operations

C、 data process

D、 continuous broadcast

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相关试题

单选题 According to the passage, ships should be equipped with ____SART.

A、at most one

B、at least one

C、more than one

D、no SART

单选题 When was radio first used by maritime community?

A、In the early 1970s

B、In 1988

C、In 1992

D、Not mentioned in this passage

单选题 What is the most beneficial to maritime communications since the invention of radio?

A、The introduction of International Maritime Organization

B、The introduction of radio communications

C、The introduction of the Global Maritime Distress and Safety System

D、The introduction of SAR

单选题 The usage of SART is to ____

A、create a series of dots on 3cm radar display of distress ship

B、locate the position of the survival craft or distressed vessels

C、locate the position of rescue ships

D、detect the height of rescue ships

单选题 The detected distance of SART is determined by____

A、The position of the SART

B、The frequency of the marine radar

C、The frequency of the SART

D、The height of the radar antenna and the SART

单选题 What does the "shipping" mean?

A、The ship-owners

B、Vessels in navigating

C、Vessels in shipyard

D、Shipment

单选题 What did indicate the adoption of GMDSS by SOLAS?

A、SOLAS accepting the amendment to the convention, 1988

B、The announcement of that GMDSS would be established in 1992

C、The INMARSAT satellites' being put into orbits

D、The invention of DSC

单选题 The distance in which the rescue vessel can find the SART is normally about ____

A、3 nautical miles

B、6 nautical miles

C、8 nautical miles

D、9 nautical miles