《海员培训、发证和值班标准国际公约》的缩写为MARPOL。
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当ADIRU失去交流电时，LADIRU能工作多长时间（）
A. 20分钟
B. 30分钟
C. 40分钟
D. 工作到电瓶电压低于18V为止
Your company has an Active Directory forest that contains client computers that run Windows Vista and Windows XP. You need to ensure that users are able to install approved application updates on their computers. Which two actions should you perform（）
A. Set up Automatic Updates through Control Panel on the client computers.
B. Create a GPO and link it to the Domain Controllers organizational unit. Configure the GPO to automatically search for updates on the Microsoft Update site.
Create a GPO and link it to the domain. Configure the GPO to direct the client computers to the Windows Server Update Services （WSUS） server for approved updates.
D. Install the Windows Server Update Services （WSUS）. Configure the server to search for new updates on the Internet. Approve all required updates.
计量检定的依据是什么？计量检定规程有哪几种？各自适合什么范围？
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