初唐诗歌对唐诗的繁荣、发展主要有哪些贡献？其代表诗人是谁？
世界银行和亚洲开发银行贷款项目的工程和货物国际竞争性招标的授标原则为（）中标。 A.报价最低者 。 B.评标价最低者 。 C.综合得分最高者 。 D.性价比最高者。
You are developing a Windows Forms application that contains a DataGridView control. The DataGridView capture the customer's name, address, and phone number. You have been asked to provide data validation in a DataGridView to prevent users from leaving the.. You need to ensure that users cannot tab out of the name field without entering data What should you do ?（） Validate the name field in the CellValidating event. Set e.Cancel = true if the name field is。 Validate the name field in the CellErrorTextChanged event. Get e.RowIndex if the name field ..。 Validate the name field in the CellEnter event. Set the focus on the name field if the name ...。 Validate the name field in the CancelRowEdit event. Set the focus on the name field if the name ...。
You are a network administrator for your company. The network consists of a single Active Directory domain. All domain controllers and member servers run Windows Server 2003， Enterprise Edition. All client computers run Windows XP Professional. The company has one main office and one branch office. The two offices are connected by a T1 WAN connection. There is a hardware router at each end of the connection. The main office contains 10，000 client computers， and the branch office contains 5，000 client computers. You need to use DHCP to provide IP addresses to the Windows XP Professional computers in both offices. You need to minimize network configuration traffic on the WAN connection. Your solution needs to prevent any component involved in the DHCP architecture from becoming a single point of failure. What should you do？ （） At the main office， configure two Windows Server 2003 computers as a DHCP server cluster. Configure the branch office router as a DHCP relay agent.。 At the main office， configure two Windows Server 2003 computers as a DHCP server cluster. At the branch office， configure a Windows Server 2003 computer as a DHCP relay agent.。 At the main office， configure two Windows Server 2003 computers as a DHCP server cluster. At the branch office， configure two Windows Server 2003 computers as a DHCP server cluster.。 At the main office， configure two Windows Server 2003 computers as DHCP servers. Configure one DHCP server to handle 80 percent of the IP address scope and the other DHCP server to handle 20 percent. Configure the branch office router as a DHCP relay agent.。
在年平均雷电日大于（）天的地区，配电变压器低压侧每相宜装设低压避雷器。 10。 20。 30。 40。
All servers on your companys network run Windows Server 2008 R2. Client computers run a Windows， Mac， or Linux operating system.
The company is planning to virtualize an enterprise application. You need to recommend a virtualization solution that allows the virtualized application to be accessed from all of the client computers.
Which technology should you recommend？（）
