单项选择题
To determine that a compartment contains sufficient oxygen to sustain life, you should use a/an （）.
A.explosimeter
B.oxygen indicator
C.fresh air indicator
D.all of the above
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相关考题
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单项选择题
An oxygen indicator will detect （）.
A.concentrations of explosive gas
B.an oxygen deficiency in a space
C.the presence of harmful amounts of carbon monoxide
D.All of the above -
单项选择题
The term "oily mixture", as defined in the Pollution Prevention Regulations includes （）.
A.sludge
B.oily ballast water
C.bilge slops
D.All of the above -
单项选择题
The term "oil", as used in the Pollution Prevention Regulations, means （）.
A.fuel oil only
B.crude oil only
C.liquefied petroleum gas
D.petroleum oil of any kind
