单项选择题
A.benzene B.tar C.middle oil D.toluene
All of our export dangerous goods are（）the standard.A.o...
单项选择题All of our export dangerous goods are（）the standard.
A.on B.over C.up to D.above of
All of our export dangerous cargo is（）examined before s...
单项选择题All of our export dangerous cargo is（）examined before shipment.
A.though B.through C.thorough D.thoroughly
All handling and stowage of packaged hazardous material...
单项选择题All handling and stowage of packaged hazardous materials on board a domestic vessel engaged in foreign trade shall be done under the supervision of（）.
A.a MSA Marine Inspector B.an officer assigned to the vessel by MSA C.a officer from CCS D.the National Cargo Bureau
