A fire starting by spontaneous combustion
题型：单项选择题
问题：
A fire starting by spontaneous combustion can be expected in which condition?（）.
A.Paints, varnish, or other liquid flammables are stowed in a dry stores locker
B.Inert cargoes such as pig iron are loaded in a wet condition
C.Oily rags are stowed in a metal pail
D.Clean mattresses are stored in contact with an electric light bulb