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根据《民用航空空中交通通信导航监视设备使用许可工作管理细则》,通信导航监视设备要申请使用许可证以在中国民用航空领域推广使用的,设备生产厂家应当先申请()以对设备可靠性、可用性、可维护性和安全性进行验证和确认。

A. 使用许可证
B. 临时使用许可证
C. 交通部的推荐
D. 民航局的推荐

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活期一本通存折账号的号码长度为()位数。

A. 10
B. 12
C. 15
D. 18

You are a network administrator for Alpine Ski House. The network consists of a single Active Directory domain. The domain name is alpineskihouse.com. The network contains three Windows Server 2003 domain controllers. You are creating the recovery plan for the company. According to the existing backup plan, domain controllers are backed up by using normal backups each night. The normal backups of the domain controllers include the system state of each domain controller. Your recovery plan must incorporate the following organizational requirements. Active Directory objects that are accidentally or maliciously deleted must be recoverable. Active Directory must be restored to its most recent state as quickly as possible. Active Directory database replication must be minimized.You need to create a plan to restore a deleted organizational unit (OU). Which two actions should you include in your plan?()

A. Restart a domain controller in Directory Services Restore Mode.
B. Restart a domain controller in Safe Mode.
C. Use the Ntdsutil utility to perform an authoritative restore operation of the Active Directory database.
D. Restore the system state by using the Always replace the file on my computer option.
E. Use the Ntdsutil utility to perform an authoritative restore operation of the appropriate subtree.

在0624H单元内有一条二字节JMPSHORTOBJ指令,如其中位移量为6BH。

水和空气两种不同流体在圆管内流动,临界雷诺数的关系Recr是()

A. Recr水〉Recr空气
B. Recr水〈Recr空气
C. Recr水=Recr空气
D. 因温度和压力不同而不同

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