單項選擇題

Another name for coal naphtha that would appear on a dangerous cargo manifest is（）.

A.benzene
B.tar
C.middle oil
D.toluene

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單項選擇題

All of our export dangerous goods are（）the standard.

A.on
B.over
C.up to
D.above of

單項選擇題

All of our export dangerous cargo is（）examined before shipment.

A.though
B.through
C.thorough
D.thoroughly