锻炼成瘾
You need to create a column that allows you to createa unique constraint. Which two column definitions should you choose?（） nvarchar（100） NULL。 nvarchar（max） NOT NULL。 nvarchar（100） NOT NULL。 nvarchar（100） SPARSE NULL。
混凝土的抗渗等级，按标准试验方法进行试验所能承受的（）来确定。
施工方案（措施）应由（）审批，并上报公司备案。 项目技术负责人。 施工员。 资料员。 项目负责人。
You are the administrator of a Microsoft Windows Server 2003 computer named SQL1. SQL1 runs SQL Server 2005 and is a member of a Microsoft Active Directory domain named Contoso.com. The domain is configured with all of the default settings. Several members of the information security team have requested access to SQL1. The information security team uses the Microsoft Windows XP Professional， Linux， and Macintosh operating systems to perform vulnerability assessments. The information security team members ask you to create two new logon accounts for their use. They would like the logon accounts to have the following user names and passwords： User name\password for first account： pentest\P@ssw0rdUser name\password for second account： hacktest\password You need to provide the information security team with the requested access to SQL1. Which Transact-SQL script should you use？（） CREATE LOGIN pentestWITH PASSWORD = 'P@ssw0rd' CREATE LOGIN hacktestWITH PASSWORD = 'password'。 CREATE LOGIN pentestWITH PASSWORD = 'P@ssw0rd' CREATE LOGIN hacktestWITH PASSWORD = 'password',CHECK_POLICY = OFF。 CREATE LOGIN pentestWITH PASSWORD = 'P@ssw0rd' CREATE LOGIN hacktestWITH PASSWORD = 'password'[HASHED]。 CREATE LOGIN [CONTOSO\pentest]FROM WINDOWS CREATE LOGIN [CONTOSO\hacktest]FROM WINDOWS&e。
符合安全运输规定而遭受雨淋的损失的保险险别责任属于（）
