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You work as an application developer at Contoso.com. You use Microsoft .NET Framework 3.5 and Microsoft ADO.NET to develop an application that will connect to the Microsoft SQL Server 2005 database. You application has a connection string that is defined as follows： "Server=DB01；Database=Products Security=SSPI； Asynchronous Processing=true" Your application contains the following code. （Line numbers are for reference only.） 01 protected void UpdateData（SqlCommand cmd） 02 { 03 cmd.Connection.Open（）； 04 05 lblResult.Text = "Updating ..."； 06 } The cmd object takes forever to execute. You want to make sure that the application continues to execute while cmd is executing. What should you do？（） ["A","B","C","D","E","F"]
在墙体的芯柱应符合的构造要求中，为提高墙体抗震受剪承载力而设置的其他芯柱，宜在墙体内均匀布置，最大间距不应大于（）m。 ["1.2","1.6","2.0","2.4"]
CorelDRAW提供的基本样式不包括哪一种。（） ["图形样式","位图图像样式","美术字文本样式","段落文本样式"]
教材中某现浇七跨50m预应力混凝土连续箱梁，采用移动支架施工，第一跨落梁时，箱梁在活动盆式支座上出现滑移，1h后最大横向滑移量达46cm，导致严重事故。经分析原因是（），设计选用支座的转角偏小也是重要原因。 ["落梁方法不正确","支座安装不正确","支座材料质量问题","支座布置不合理"]
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