吊装预制构件的其中设备所承担的荷载不宜超过起重设备使用时最大起重量的（）。 A.60% 。 B.70% 。 C.80% 。 D.90%。
维吉尔
Your company has an Active Directory forest. The corporate network uses DHCP to configure client computer IP addresses. The DHCP server has a DHCP client reservation for a portable computer named WKS1. You install a second DHCP server on the network. You need to ensure that WKS1 receives the DHCP reservation from the DHCP service. What should you do？（） Run the ipconfig /renew command on WKS1。 Run the netsh add helper command on WKS1。 Add the DHCP reservation for WKS1 to the second DHCP server。 Add both DHCP servers to the RAS and IAS Servers group in the Active Directory domai。
Your corporate network has a member server named RAS1 that runs Windows Server 2008. You configure RAS1 to use the Routing and Remote Access Services （RRAS）. The company s remote access policy allows members of the Domain Users group to dial in to RAS1. The company issues smart cards to all employees. You need to ensure that smart card users are able to connect to RAS1 by using a dial-up connection. What should you do？（） Install the Network Policy Server （NPS） on the RAS1 server.。 Create a remote access policy that requires users to authenticate by using SPAP.。 Create a remote access policy that requires users to authenticate by using EAP-TLS.。 Create a remote access policy that requires users to authenticate by using MS-CHAP v2.。
对起重机进行维护保养的基本方法是（）润滑、检查、调整。 观看。 测量。 修理。 清洁。
Certkiller分支的远程分支机构之一是运行在Windows Server 2008有准备唯一的域控制器（RODC）安装。 出于安全原因，你不想被存储在RODC的一些关键的凭据，如（密码，加密密钥）。你应该怎么做，使这些凭据不能被复制到林中的任何RODC的呢（）
