【多选题】
计算机系统备份可采取下列设备备份方法：___。
A. 整机备份
B. 关键部件现场备份
C. 双套计算机系统
D. 空调器、电源及辅助设备备份
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答案
ABD
解析
暂无解析
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【判断题】
国际出人口信道提供单位、互联单位和接入单位，应当建立相应的网络管理中心，依照法律和国家有关规定加强对本单位及其用户的管理，做好网络信息安全管理工作，确保为用户提供良好、安全的服务。
A. 对
B. 错
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