单项选择题
A.air from contacting the oil vapors
B.permitting re-ignition boiling of the heated oil
C.spontaneous combustion below the oil surface
D.toxic fumes from escaping to the surface
单项选择题 The process that occurs when heat is generated by a chemical reaction within a substance and continues to a point of ignition is known as ().
单项选择题 A vessel sailing through the specific special areas may discharge or dispose of ().
单项选择题 In order to find out which lifeboat you are assigned, you should look at the ().