两种比较流行的网络操作系统的模式是（）和（）。
如果国民生产总值呈不断增长趋势，则此时企业进行证券投资，一般会获得比较好的收益；反之则收益会降低。
如果要使用CSS将文本样式定义为粗体，需要设置（）文本属性。 ["font-family","font—style","font—weight","font—size"]
数据精确它是一种（）的变革。 ["物联网","文化","新技术","移动通信"]
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."]
寒潮
