单选题You are on a container vessel. What concerning the handling and stowage of containerized hazardous materials is TRUE?（）.AOpen-bed containers may be used to transport hazardous materials if the cargo is properly securedBA portable cargo tank of a flammable，cryogenic liquid may not be in transit for a period exceeding its marked rated holding time unless the liquid is inhibitedCA portable cargo tank containing a cryogenic liquid must be shipped on deck unless forced ventilation is provided to the tween-decksDA container loaded with packages of tear gas would display a placard reading Irritant
单选题
You are on a container vessel. What concerning the handling and stowage of containerized hazardous materials is TRUE?（）.
A
Open-bed containers may be used to transport hazardous materials if the cargo is properly secured
B
A portable cargo tank of a flammable，cryogenic liquid may not be in transit for a period exceeding its marked rated holding time unless the liquid is inhibited
C
A portable cargo tank containing a cryogenic liquid must be shipped on deck unless forced ventilation is provided to the tween-decks
D
A container loaded with packages of tear gas would display a placard reading Irritant
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