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论述弦槌的质量。

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鼻咽癌MRI最可能的表现为（）

A. T₁WI高信号，T₂WI高信号
B. T₁WI低信号，T₂WI低中信号
C. T₁WI高信号，T₂WI低信号
D. T₁WI低信号，T₂WI低信号
E. T₁WI中低信号，T₂WI中高信号

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为什么说社会生活的本质是实践的

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You work in a company which is named Wiikigo Corp. The company uses SQL Server 2008. You are the administrator of the company database. Now you are in charge of a SQL Server 2008 instance. There is a database named DB1 in the instance. DB1 is available to a Windows group which is named WIIKIGO\Supervisors. A Windows user named User1 is a member of the WIIKIGO\Supervisors group. WIIKIGO\Supervisors is a member of the db_owner role in the DB1 database. You must make sure that the SQL Server instance is available to User1. In the DB1 database, which Transact-SQL statement(s) should you execute?（）

A. DROP LOGIN "WIIKIGO\User1";
B. EXEC dbo.sp_droprolemember 'db_owner', 'WIIKIGO\User1';
C. EXEC dbo.sp_revokedbaccess 'WIIKIGO\User1';EXEC dbo.sp_revokelogin 'WIIKIGO\User1';
D. CREATE LOGIN "WIIKIGO\User1" FROM Windows;DENY CONNECT SQL TO "WIIKIGO\User1"

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“春风不度玉门关”是王维的诗句。

A. 正确
B. 错误

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