题目内容

超高压输电线路及变电所,采用分裂导线与采用相同截面的单根导线相比较,下列项目中()项是错的。

A. 分裂导线通流容量大些
B. 分裂导线较易发生电晕,电晕损耗大些
C. 分裂导线对地电容大些
D. 分裂导线结构复杂些

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停止DataStation使用下列哪个命令()。

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You create a Microsoft ASP.NET application by using the Microsoft .NET Framework version 3.5. You create a Web page that has a GridView control named GridView1. The GridView1 control displays the data from a database named Region and a table named Location. You write the following code segment to populate the GridView1 control. (Line numbers are included for reference only.) 01 Protected Sub Page_Load(ByVal sender As Object, _ ByVal e As EventArgs) 02 Dim connstr As String 03 ... 04 SqlDependency.Start(connstr) 05 Using connection As New SqlConnection(connstr) 06 Dim sqlcmd As New SqlCommand() 07 Dim expires As DateTime = DateTime.Now.AddMinutes(30) 08 Dim dependency As SqlCacheDependency = _ 09 New SqlCacheDependency("Region", "Location") 10 Response.Cache.SetExpires(expires) 11 Response.Cache.SetValidUntilExpires(True) 12 Response.AddCacheDependency(dependency) 13 14 sqlcmd.Connection = connection 15 GridView1.DataSource = sqlcmd.ExecuteReader() 16 GridView1.DataBind() 17 End Using 18 End Sub You need to ensure that the proxy servers can cache the content of the GridView1 control. Which code segment should you insert at line 13? () English Chinese Japan Korean - 90 - Test Information Co., Ltd. All rights reserved.

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A. 正确
B. 错误

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A. 正确
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