党员组织关系介绍信是党员政治身份的证明，介绍信的有效期一般不超过（）。 ["三个月","半年","一年"]
下列属于核电发电设备的是（）。 ["汽轮发电机组","抽水蓄能机组","石墨型设备","启闭机"]
关于堆取料机作业注意事项正确的是（）。 ["斗轮吃煤厚度不得超过0.7米","堆取料机与推土机不得在同一跨作业","可边走行边拉警","走行时严禁突然换向"]
相对于集中策略，市场细分的差异性策略的特点在于（）。 ["力量和资源更集中","风险相对更大","成本费用更高","资源有限的中小银行"]
You are the network administrator for The network consists of a single Active Directory domain named All domain controllers run Windows Server 2003, and all client computers run Windows XP Professional. Each domain server has a locally attached tape device. You need to back up each domain controller. Your backup process must fulfil the following requirements: a. System recovery must be possible in the event of server failure. b. The system configuration and all current dynamic disk configurations must be backed up. c. Other data partitions do not need to be backed up. What should you do?（） [" Use the Backup utility to back up the system files and to create an Automated System Recovery (ASR) disk."," Use the Backup utility to back up the contents of all mounted drives."," Use the Backup utility to back up only the System State data."," Use the Copy command to copy C:\\windows and its subfolders to a shared folder on the network."," Use the Xcopy command to copy C:\\windows and its subfolders to a shared folder on the network."]
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