A. 瓦斯、煤尘爆炸引起火灾 B. 机械摩擦及物体碰撞引燃可燃物导致火灾 C. 煤的自燃 D. 吸烟、电焊、灯泡取暖引燃可燃物导致火灾
A. CRS Engine B. recording Cisco Agent Desktop D. monitoring E. Cisco Supervisor Deskto
A. 60% B. 70% C. 80%