单项选择题
A package contains nitric acid solution and is radioactive. The radiation level at the package surface is 36 millirems per hour. How should this package be labeled? （）
A.Radioactive II and oxidizer B.Radioactive II and poison C.Radioactive I and corrosive D.Fissile class I
单项选择题 A dangerous cargo manifest is needed for you to carry a combustible cargo. You should obtain the shipping papers to make this manifest from the（）.
单项选择题 A continuous sounding of a fog-signal apparatus indicates（）.
单项选择题 Would you mind（）some dunnage materials for us?
