单项选择题

Which statement concerning locating signals in the GMDSS is FALSE ________．
A.Locating signals are transmitted by survival craft VHF transceivers
B.Locating signals are transmitted by SARTs
C.Locating signals are intended to facilitate the finding of a distressed vessel or its survivors
D.Locating signals are not transmitted by autoalarm generators

A.A.Locating
B.Locating
C.Locating
D.Locating

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单项选择题

Which statement concerning reserve sources of energy for GMDSS is FALSE ________．A.While the ship is at sea，there must be available at all times a supply of electrical energy sufficient to operate the radio installations and to charge any batteries used as part of a reserve source of energyB.Both the VHF and MF HF installations must be simultaneously suppliedC.A means of ensuring a continuous supply of electrical power must be provided to all GMDSS equipment that could be affected by an interruption in powerD.If a UPS or equivalent is used to supply power to the ship's GPS receiver or other source of positional information，a means must be provided to ensure the continuous supply of the information in the event of a failure to the ship's main or emergency source of power

A.A.While
B.Both
C.A
D.If

单项选择题

（）在国内外都是最常见的食物中毒，发病率高。

A．细菌性食物中毒
B．化学性食物中毒
C．真菌及其毒素植物中毒
D．有毒动植物中毒

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