单项选择题
Certain dangerous goods are required “to be stowed in a mechanically ventilated space”. When such goods are carried in a closed Ro/Ro cargo space or a special category space，this space should（）.
A.be mechanically operated B.be temperature controlled C.be mechanically ventilated D.not allow to run its refrigeration or heating equipment
单项选择题 Certain cargoes must be segregated because of their（）.
单项选择题 Cargoes which（）an explosive，inflammable，poisonous and corrosive nature are called dangerous goods.
单项选择题 Can we change the location for the tung-oil（）that for the gum rosin?
