保险作为一种特殊的投资形式，其不同于其他投资的特点有（）。 保障性。 互助性。 预防性。 不可流通性。 收益性。
按我国《招标投标法》规定，招标文件自发放之日起，至投标截至时间的期限，最短不得少于（）天 15。 20。 30。 45。
企业本期发生的下列费用和损失，影响企业本期净利润的有（）。 计提的坏账准备。 批准处理的存货盘亏损失。 固定资产安装费用。 交纳的所得税。 出借包装物的摊销价值。
儿歌
Your network contains several branch offices. All servers run Windows Server 2008 R2. Each branch office contains a domain controller and a file server. The DHCP Server server role is installed on the branch office domain controllers. Each office has a branch office administrator. You need to delegate the administration of DHCP to meet the following requirements： èAllow branch office administrators to manage DHCP scopes for their own office èPrevent the branch office administrators from managing DHCP scopes in other offices èMinimize administrative effort. What should you do？（） In the Active Directory domain， add the branch office administrators to the Server Operators built-in local group.。 In the Active Directory domain，add the branch office administrators to the NetworkConfiguration Operators built-in local group.。 In each branch office， migrate the DHCP Server server role to the file server. On each fileserver， add the branch office administrator to the DHCP Administrators local group.。 n each branch office， migrate the DHCP Server server role to the file server. In the Active Directory domain， add the branch office administrators to the DHCP Administrators domain local group.。
下列各项中，属于工业企业费用要素的是（）。
