The test sites involved in this question are the general terms and conditions of civil buildings. The ceiling, wall and floor of the kitchen in the building should be decorated with Grade A materials; The ceilings and walls of libraries, reference rooms, archives rooms and cultural relics storage rooms are Grade A, and the floors are decorated with materials not lower than Grade B 1; The staircases without natural lighting, enclosed staircases, smoke-proof staircases and the ceilings, walls and floors of their front rooms should be decorated with Grade A materials; All indoor decoration materials such as fire pump room, smoke exhaust room, steel cylinder room of fixed fire extinguishing system, power distribution room, power distribution room, ventilation and air conditioning room, etc. Should be grade a ..