One means, whether satellite or terrestrial techniques
Two means, whether satellite or terrestrial techniques
Two separate and independent means, each using different radio communication services
Two means, such as MF DSC and HF DSC
第1题：
Acknowledgement by you of receipt of a distress message from a vessel which，beyond any possible doubt，is not in your vicinity and is a long distance away must be made when ______．
A.vessels nearer the distress vessel acknowledge receipt
B.vessels nearer the distress vessel fail to acknowledge receipt
C.even you have not received the distress
D.even the vessel in distress expressly prohibit you from providing any salvage service
第2题：
What is meant by the term“radio silence”________．
A.Stations not directly involved with the on-going distress communications may not transmit on the distress frequency or channel
B.Stations remaining off the air to safeguard proprietary information
C.Two three-minute silent periods，at 15 and 45 minutes after the hour，that provide a transmitting“window”for distressed vessels to transmit distress alerts using J3E
D.Communications on a distress frequency or channel is banned for 24 hours following the cessation of the distress traffic
第3题：
I'd like to ________ this old car with a new model but I can't afford it.
A.replace
B.exchang
C.convert
D.transmit
第4题：
are not required aboard vessels on runs of less than 30 minutes duration
must be Coast Guard approved and stowed in a portable，watertight container
must be marked with an expiration date not more than 42 months from the date of manufacture
All of the above
第5题：
Which of the following can transmit block level storage over Ethernet？（）
第6题：
What is the most appropriate action for a GMDSS radio operator to take in a distress situation where immediate help is needed，but the vessel is not sinking nor needs to be abandoned ________．
A.Switch off EPIRB and SART manually
B.Transmit distress call by MF/HF，VHF or INMARSAT
C.Notify the RCC（Rescue Coordination Center）through VHF FM on channel 13
D.Transmit distress call by activating the radiotelegraph automatic alarm signal
第7题：
CONTACT VESSELS IN VICINITY OF DISTRESS AND REPORT.的中文翻译是：与能见距离内的船舶联系并报告。
第8题：
While proceeding to a distress site，you hear the words “Seelonce mayday” on the radiotelephone．Which action should you take ________．
A.Resume base course and speed as your assistance is no longer required
B.Acknowledge receipt and advise your course，speed，and ETA
C.Relay the original distress message as no other vessel has acknowledged it
D.Monitor the radiotelephone but do not transmit
第9题：
A compulsory vessel must carry at least two licensed GMDSS Radio Operators
A compulsory vessel must satisfy certain equipment carriage requirements that are determined by where the vessel sails
A compulsory vessel must be able to transmit and respond to distress alerts
All of the above
第10题：
only automatically
only manually
both automatically and manually
only by remote control