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For GMDSS，which statement concerning a compulsory vessel is FALSE?（）
A:A conditional or partial exemption may be granted，in exceptional circumstances，for a single voyage outside the sea area for which the vessel is equipped
B:Once a compulsory vessel's GMDSS station has been fitted and inspected，the station must be inspected only once every five years
C:All passenger vessels and all cargo vessels that are 300 Gross Tons or larger must comply
D:Compulsory vessels must carry at least two licensed GMDSS Radio Operators

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出自：海船船员证

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