A.電路調(diào)整器Power line conditioners B.電流浪涌防護裝置A surge protective device C.替代電源 D.不間斷供電
A.尾隨Piggybacking B.肩窺Shoulder surfing C.Dumpster diving D.冒充Impersonation
A.陪同參觀者 B.參觀者佩戴證件 C.參觀者簽字 D.參觀者由工作人員抽樣檢查