Cargoes which()an explosive, inflammable,
问题:
Cargoes which()an explosive, inflammable, poisonous and corrosive nature are called dangerous goods.
A.is
B.are of
C.is of
D.are
Cargoes which()an explosive, inflammable, poisonous and corrosive nature are called dangerous goods.
A.is
B.are of
C.is of
D.are