You have a domain controller named DC1 that runs Windows Server 2008 R2. DC1 is configured as a DNS server for contoso.com. You install the DNS Server server role on a member server named Server1 and then you create a standard secondary zone for contoso.com. You configure DC1 as the master server for the zone. You need to ensure that Server1 receives zone updates from DC1. What should you do（） On Server1， add a conditional forwarder.。 On DC1， modify the permissions of contoso.com zone.。 On DC1， modify the zone transfer settings for the contoso.com zone.。 Add the Server1 computer account to the DNSUpdateProxy group.。
Your network contains a server that runs Windows Server 2008. The server has the Network Policy Server （NPS） service role installed. You need to allow only members of a global group named Group1 VPN access to the network. What should you do？（） Add Group1 to the RAS and IAS Servers Group。 Add Group1 to the Network Configuration Operators group。 Create a new network policy and define a group-based connection for Group1. Set the access permission of the policy to Access granted. Set the processing order of the policy to 1。 Create a new network policy and define a group-based condition for Group1. Set the access permission of the policy to Access Granted. Set the processing of the policy to 3.。
密度测定的恒温过程，应使刻度部分浸入水中，并恒温30min，恒温的温度与李氏比重瓶瓶身上标注的温度相同。
水泥密度试验的水泥填充质量为50g，精确至0.01g。
准静止锋
新生儿已经有光反应，2个月有注视物体能力，3个月开始视线追踪，（）个月开始能鉴别物体颜色、形状，认识母亲。
