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