题目内容

WK-4型挖掘机回转速度（）转/分。

A. 4—4.5
B. 2.5—3.5
C. 2—2.5
D. 3—3.5

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选择设备的经济评价方法是（）。

A. 投资回收期法
B. 费用换算法
C. 复利法
D. 静态法
E. 费用效率法

精馏岗位高塔釜列管自聚物如何产生的（）

A. 系统含水高
B. 高沸聚集没有及时排出
C. 热水循环量过大
D. 全凝器温度高

在允许缺货的条件下，必然会发生缺货成本。

A. 正确
B. 错误

You are the network administrator for The network consists of a single Active Directory domain named All network servers run Windows Server 2003. You are responsible for defining the procedures for backing up and restoring all servers. TestKing uses the Backup utility. To enhance security, The IT department deploys certificates to all network users. Smart cards will be required to log on to the domain. A domain controller named TestKingDC1 is configured as the certificate server. You need to create a backup plan for TestKingDC1. The backup must include only the minimum amount of data needed to restore Active Directory and the certificate server. Which action or actions should you perform? （）(Choose all that apply)

A. Back up the System State data.
Back up C:\windows\ntds.
C. Back up C:\windows\sysvol.
D. Back up C:\windows\system32\certsrv.