单项选择题
The shipper must（）in a suitable manner dangerous goods as dangerous.
A.mark or label B.write or sign C.type or stamp D.print or paint
单项选择题 The nozzle of a gasoline hose or can should be kept（）.
单项选择题 The dangerous cargo manifest does NOT indicate（）.
单项选择题 The case for Dangerous Goods in question was badly crushed and was returned to dock shed and （）.
