眼肌面积
定置管理依据安全、品质、效率、效益、和()而制定。 ["A.管理的特殊要求 ","B.造价的特殊要求 ","C.物品本身的特殊要求 ","D.气候的要求"]
群体动力
某企业拟筹资5000万元,其中发行债券2000万元,筹资费率为2%,债券年利率为10%,所得税率为33%,优先股1000万元,年股息率7%,筹资费率为3%;普通股2000万元筹资费率为4%,第一年预期股利率为10%,以后各年增长4%。试计算该筹资方案的综合资金成本。该筹资方案中,各种资金占全部资金的比重
You work in a company which 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. The DB1 database contains the following stored procedure. (Line numbers are useded for reference only.) 01 CREATE PROCEDURE Sales.Procedure1 02 AS 03 IF OBJECT_ID('Service.Table') IS NOT NULL 04 DROP TABLE Service.Table; 06 CREATE TABLE Service.Table ( 07 Id int PRIMARY KEY CLUSTERED, 08 Name varchar(100); 09 ); 11 ... 12 GOThe following exception is raised when a user tries to invoke Procedure1, "Msg 262, Level 14, State 1, Procedure Procedure1, Line 5 CREATE TABLE permission denied in database 'DB1'." You should grant the user access to execute Procedure1, you must assign only the required permissions. What action should you do perform?() ["Between lines 01 and 02, you should insert the WITH EXECUTE AS 'dbo' clause. ","Between lines 01 and 02, you should insert the EXECUTE AS USER = 'dbo' statement. ","You should give the user the ALTER permission on the Service schema ","You should give the CREATE TABLE permission and permit the user to drop the Service.Table table.&e"]
简述碱石灰烧结法生产氧化铝的基本原理。