无码高清视频|成人自拍视频|欧美成人午夜无码A片秀色直播|草美女视频网站|美女被操网站在线观看

單項(xiàng)選擇題

An administrator sees that smoke is coming from the UPS. Which of the following should they doFIRST?()

A.Use a Class A fire extinguisher.
B.Evacuate personnel.
C.Install additional fans in the UPS
D.Backup the servers.

微信掃碼免費(fèi)搜題