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【单选题】

We（）the distress signal on our own radio before the shore station relayed it to us.

A、received alreadly

B、have received

C、had received

D、was receiving

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更多“We（）the distress signal on our own radio before the shore station relayed it to us.”相关的问题
第1题
[单选题] Upon receipt of a distress message，a merchant vessel is bound to proceed to the scene of the distress. Under which of the following cases would this NOT be true?（）

A、The vessel would arrive at the distress scene more than 36 hours after the receipt of the initial distress message  B、There are vessels closer to the distress scene that are proceeding to assist  C、The Master of the vessel in distress has requisitioned another vessel，and that vessel has accepted the requisition  D、You are on a tank vessel and the distress involves a major fire on board the other vessel  

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第2题
[] Upon receipt of a distress message，a merchant vessel is bound to proceed to the scene of the distress. Under which of the following cases would this NOT be true?（）

A、A.The vessel would arrive at the distress scene more than 36 hours after the receipt of the initial distress message  B、B.There are vessels closer to the distress scene that are proceeding to assist  C、C.The Master of the vessel in distress has requisitioned another vessel，and that vessel has accepted the requisition  D、D.You are on a tanker and the distress involves a major fire on board the other vessel  

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第3题
[单选题] If a DSC distress relay is transmitted from coast station , it will（）.

A、indicate the ship in distress that the alert has been received  B、alert ships in the area of a distress incident that a distress has occurred  C、inform other coast station of distress incident  D、repeat the distress alert in 5 minutes  

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第4题
[单选题] The control of distress traffic is the responsibility of（）.

A、the owners  B、the charterers  C、the shipper  D、the vessel in distress or of the station that relays the distress message  

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第5题
[单选题] We consider（）send a helicopter with medical facilities to the distress area.

A、it necessary  B、it is necessary  C、it necessary to  D、necessary  

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第6题
[单选题] When receiving a distress alert, the SAR authorities ashore and the ships in the vicinity of the ship in distress will（）in a coordinated search and rescue operation with the minimum delay.

A、assist  B、send a rescue vessel  C、search the distress area  D、reach the distress position at once  

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第7题
[] When receiving a distress alert, the SAR authorities ashore and the ships in the vicinity of the ship in distress will（）in a coordinated search and rescue operation with the minimum delay.

A、A.assist  B、B.send a rescue  C、C.search the distress area  D、D.Reach the distress position at once  

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第8题
[单选题] 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  

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第9题
[单选题] The advantage of geostationary satellites is（）.

A、the range of antenna can cover everywhere in the world  B、we can know the ship’s exact position  C、that the distress alert can be located as soon as possible  D、antenna of permanent earth stations may be directed towards fixed points in the sky  

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