单项选择题
A.wood B.oil C.electrical equipment D.magnesium
One of the methods NOT usually allowed in cleaning up o...
单项选择题One of the methods NOT usually allowed in cleaning up oil spills in the United States is （）.
A.skimmers B.straw C.dispersants D.sawdust
Which of the listed classes of fire would most likely o...
单项选择题Which of the listed classes of fire would most likely occur in the engine room of a vessel?（）
A.Classes A and B B.Classes B and C C.Classes C and D D.Classes A and D
If ignited, which of the listed materials would be a cl...
单项选择题If ignited, which of the listed materials would be a class "B" fire?（）
A.Magnesium B.Paper C.Wood D.Diesel Oil
