單項選擇題

Guards are appropriate whenever the function required by the security program involves which of the following?守衛(wèi)合適執(zhí)行安全程序所涉及以下哪一項功能?()

A. The use of discriminating judgment使用辨別判斷能力的時候
B. The use of physical force使用暴力的時候
C .The operation of access control devices對訪問控制設(shè)備操作的時候
D .The need to detect unauthorized access需要能檢測到未授權(quán)訪問的時候

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