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简述起重设备点检内容及标准。

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“现代艺术之父”是指（）国人塞尚。

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试述个别劳动供给曲线为什么向后弯曲？

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（）是指银行向从事合法生产经营的个人发放的，用于定向购买或租赁商用房、机械设备以及用于满足个人控制的企业生产经营流动资金需求和其他合理资金需求的贷款。

A. 个人住房贷款
B. 个人消费贷款
C. 个人经营贷款
D. 自营性个人住房贷款

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You are creating a stored procedure that will delete data from the Contact table in a SQL Server 2005 database. The stored procedure includes the following Transact-SQL statement to handle any errors that occur. BEGIN TRY BEGIN TRANSACTION DELETE FROM Person.Contact WHERE ContactID = @ContactID COMMIT TRANSACTION END TRY BEGIN CATCH DECLARE @ErrorMessage nvarchar（2000） DECLARE @ErrorSeverity int DECLARE @ErrorState int SELECT @ErrorMessage = ERROR MESSAGE（），@ErrorSeverity=ERROR SEVERITY（），@ErrorState = ERROR STATE（） RAISERROR （@ErrorMessage， @ErrorSeverity， @ErrorState） END CATCH； You test the stored procedure and discover that it leaves open transactions. You need to modify the stored procedure so that it properly handles the open transactions. What should you do？（）

Add a COMMIT TRANSACTION command to the CATCH block.
B. Remove the COMMIT TRANSACTION command from the TRY block.
C. Add a ROLLBACK TRANSACTION command to the CATCH block.
D. Add a ROLLBACK TRANSACTION command to the TRY block.

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