你有一台运行Windows 7的计算机。你需要配置计算机从一个本地Windows更新服务器（WSUS）上下载更新。你该怎么做？（） 在Windows更新中，修改Windows更新设置。 在本地组策略中，修改Windows更新设置。 在系统设置中，修改系统保护设置。 从本地组策略中，修改位置和传感器（Location and Sensors）设置。
酶反应器与化学反应器和发酵罐有何区别？
Your company， Contoso， Ltd.， has a main office and a branch office. The offices are connected by a WAN link. Contoso has an Active Directory forest that contains a single domain named ad.contoso.com. The ad.contoso.com domain contains one domain controller named DC1 that is located in the main office. DC1 is configured as a DNS server for the ad.contoso.com DNS zone. This zone is configured as a standard primary zone. You install a new domain controller named DC2 in the branch office. You install DNS on DC2. You need to ensure that the DNS service can update records and resolve DNS queries in the event that a WAN link fails. What should you do（） Create a new stub zone named ad.contoso.com on DC2.。 Configure the DNS server on DC2 to forward requests to DC1.。 Create a new secondary zone named ad.contoso.com on DC2.。 Convert the ad.contoso.com zone on DC1 to an Active Directory-integrated zone.。
制造商尽可能通过许多负责任的、适当的批发商和零售商推销其产品，这是指（） 密集分销。 选择分销。 独家分销。 定销。
Your company has two domain controllers that are configured as internal DNS servers. All zones on the DNS servers are Active Directory-integrated zones. The zones allow all dynamic updates. You discover that the contoso.com zone has multiple entries for the host names of computers that do not exist. You need to configure the contoso.com zone to automatically remove expired records. What should you do（） Enable only secure updates on the contoso.com zone.。 Enable scavenging and configure the refresh interval on the contoso.com zone.。 From the Start of Authority tab， decrease the default refresh interval on the contoso.com zone.。 From the Start of Authority tab， increase the default expiration interval on the contoso.com zone.。
一氧化碳的“攻击性”很强，空气中含（）%或以上浓度，就会很快进入血流，造成危害。
