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单选题
One of the principal dangers inherent in liquefied petroleum gas is（）.
A
as it warms up it becomes heavier than air
B
the way it reacts with sea water
C
the strong odor it produces
D
its low temperature causes frostbite or freezing
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单选题0ne of the principal dangers inherent in liquified petroleum gas is（）.A
as it warms up it becomes heavier than airB
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the strong odor it producesD
its low temperature causes frostbite or freezing
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variableB
the sameC
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单选题When carrying a cargo of asphalt or molten sulfur，which are carried at temperatures of over 300°F，one of the biggest dangers is（）.A
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separating cargoes so that the inherent characteristics of one cannot damage the otherB
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listing the cargoes in order of their flammability
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单选题The primary hazard of liquefied petroleum gas and liquefied natural gas is（）.A
pressureB
toxicityC
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cool the bottles or remove them from the fire areaC
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place insulating material over the bottles
考题
名词解释题液化天然气liquefied natural gas（LNG）
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