单项选择题
The fire of electrical equipment is classified as（）fire.
A.class A B.Class B C.Class C D.Class D
单项选择题 The fire of fuel oil is classified as（） fire.
单项选择题 The fire of sodium is classified as（） fire.
单项选择题 The essence of an abandon ship drill is that the survival crafts are manned and operated by the crew members assigned to them on the（）
