试述硫在焊缝中的危害性？
You are designing an IP address management strategy to address the anticipated growth of the company and to meet the business and technical requirements. What should you do？（） Install one DHCP server in each branch office and in Sydney. On each server， create duplicate scopes that contain the necessary scope options. Configure the scopes to assign all of the available IP addresses to each office.。 Install one DHCP server in each branch office and in Sydney. On each server， create duplicate scopes that contain the necessary scope options. Configure the scopes to assign half of the available IP addresses to each office.。 Install two DHCP servers in each branch office and in Sydney. Authorize one server in each office. On each server， create duplicate scopes that contain the necessary scope options. Configure the scope to assign half of the available IP addresses to each office.。 Install two DHCP servers in each branch office and in Sydney. Authorize both servers in each office. On each server， create duplicate scopes that contain the necessary scope options. Configure the scope to assign half of the available IP addresses to each office.。
锅炉正常运行中应保持炉膛负压（） 2一6mm水柱。 10一15mm水柱。 15—20mm水柱。
You have an Exchange Server 2010 Mailbox server.All users use Microsoft Office Outlook 2010 to access their mailboxes.You implement a policy that automatically deletes e-mail messages that are older than 90 days.You need to provide users with an alternate location to store email messages that are older than 90 days.Administrators must be able to find the messages in both locations when they perform multi-mailbox searches.What should you create？（） a .pst file for each user that is stored in a shared folder。 a Personal Archive for each user。 a journal rule。 a Retention Policy。
下面关于个人征信系统的说法，正确的是（）。 个人征信系统的建立使得商业银行在贷款审批中将查询个人信用报告作为必须的依据，从制度上规避了信贷风险。 个人征信系统的建立有助于商业银行准确判断个人信贷客户的还款能力，同时也是为了保护消费者本身利益，提高透明度。 全国统一的个人征信系统可以为商业银行提供风险预警分析。 个人征信系统的建立，为规范金融秩序，防范金融风险提供了有力保障。 个人征信系统有助于识别和跟踪风险、激励借款人按时偿还债务。
判断改革和各方面工作得失的根本标准是：（）
