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單項選擇題

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

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單項選擇題

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（）.

A.manufacturer
B.CCS
C.MSA
D.shipper

單項選擇題

A continuous sounding of a fog-signal apparatus indicates（）.

A.the vessel is in distress
B.the vessel has completed loading dangerous cargo
C.it is safe to pass
D.the vessel is anchored