A. 常闭式防火门是否处于关闭状态; B. 防火卷帘下是否堆放物品; C. 消火栓、灭火器、消防安全标志完好情况; D. 营业期间有无超范围经营的情况。
A. less and have less strength B. more and have less strength C. more and have greater strength D. less and have greater strength
A. 正确 B. 错误