Which statement is TRUE ________．A.Key letters or abbreviations may not be used in GMDSS radio logbooks under any circumstanceB.Urgent communications do not need to be entered in the GMDSS radio logC.Both of the aboveD.None of the above
Which statement is TRUE ________．
A.Key letters or abbreviations may not be used in GMDSS radio logbooks under any circumstance
B.Urgent communications do not need to be entered in the GMDSS radio log
C.Both of the above
D.None of the above
相关考题：
In John Whitehead's opinion, which statement is true?A．Face recognition technology may interfere with people's privacy.B．Face recognition technology may enhance the country's constant surveillance.C．Face recognition technology can be used in the same way wiretaps are used.D．Face recognition technology can be used after its threat has been removed.
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Which statement concerning GPS is TRUE ________．A.It cannot be used in all parts of the worldB.There are 12 functioning GPS satellites at presentC.It may be suspended without warningD.Two position lines are used to give a 2D fix
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Which of the following statements is true regarding the VERSIONS BETWEEN clause？（） A、 The VERSIONS BETWEEN clause may be used in DML statements.B、 The VERSIONS BETWEEN clause may be used in DDL statements.C、 The VERSIONS BETWEEN clause may not be used to query past DDL changes to tables.D、 The VERSIONS BETWEEN clause may not be used to query past DML statements to tables.
Which statement is true about the database and database-user used during installation of IMS Server？（）A、A preexisting database user may be used but a new database has to be created during installation.B、A preexisting database may be used but a new database user has to be created during installation.C、A preexisting database and user may be used or a new database and user are created during installation.D、A preexisting database and user cannot be used； a new database and user are created during installation.
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单选题For GMDSS，which statement concerning a compulsory vessel is FALSE?（）AA conditional or partial exemption may be granted，in exceptional circumstances，for a single voyage outside the sea area for which the vessel is equippedBOnce a compulsory vessel's GMDSS station has been fitted and inspected，the station must be inspected only once every five yearsCAll passenger vessels and all cargo vessels that are 300 Gross Tons or larger must complyDCompulsory vessels must carry at least two licensed GMDSS Radio Operators
单选题Which statement is TRUE concerning the danger signal?（）.AWhen any vessel fails to understand the intentions of an approaching vessel she must sound the danger signalBOnly the stand-on vessel can sound the danger signalCDistress signals may be used in place of the danger signalDThe danger signal consists of 4 or more short blasts of the whistle
单选题Which statement is TRUE（）.AKey letters or abbreviations may not be used in GMDSS radio logbooks under any circumstanceBUrgent communications do not need to be entered in the GMDSS radio logCBoth of the aboveDNone of the above
单选题Which statement is TRUE（）.AGMDSS radio logs are required to contain entries pertaining to all incidents connected to radio communication service which appear to be of importance to the safety of life at seaBAll distress communications must be entered in the GMDSS radio logCBoth of the aboveDNone of the above
单选题Which statement is TRUE concerning the placard entitled Discharge of Oil Prohibited（）.AIt is required on all vesselsBIt may be located in a conspicuous place in the wheelhouseCIt may be located at the bilge and ballast pump control stationDAll of the above
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
单选题Which statement about the hospital space on a cargo ship is TRUE（）.AThe hospital may be used for disciplinary confinement if it is not being used for treatmentBThe hospital space must have both a bathtub and showerCA hospital is required on all vessels with a crew of 12 or more if it makes overnight voyagesDIf a ship has a crew of forty-five who do not have their own room，the hospital must have four berths
单选题Which statements concerning the switch construct are true？（）AAll switch statements must have a default label.BThere must be exactly one label for each code segment in a switch statement.CThe keyword continue can never occur within the body of a switch statement.DNo case label may follow a default label within a single switch statement.EA character literal can be used as a value for a case label.
多选题Which three are true?（）AA MERGE statement is used to merge the data of one table with data from another.BA MERGE statement replaces the data of one table with that of another.CA MERGE statement can be used to insert new rows into a table.DA MERGE statement can be used to update existing rows in a table.
单选题Which statement is TRUE concerning lifeboat gripes?（）AThey must be released by freeing a safety shackleBThey should not be released until the boat is in lowering positionCThey may be adjusted by a turnbuckleDThey are normally used only with radial davits
单选题Which statement is true about the database and database-user used during installation of IMS Server？（）AA preexisting database user may be used but a new database has to be created during installation.BA preexisting database may be used but a new database user has to be created during installation.CA preexisting database and user may be used or a new database and user are created during installation.DA preexisting database and user cannot be used； a new database and user are created during installation.
单选题Which of the following statements is true regarding the VERSIONS BETWEEN clause？（）A The VERSIONS BETWEEN clause may be used in DML statements.B The VERSIONS BETWEEN clause may be used in DDL statements.C The VERSIONS BETWEEN clause may not be used to query past DDL changes to tables.D The VERSIONS BETWEEN clause may not be used to query past DML statements to tables.
单选题Which statement concerning GPS is TRUE（）.AIt cannot be used in all parts of the worldBThere are 12 functioning GPS satellites at presentCIt may be suspended without warningDTwo position lines are used to give a 2D fix