线路的直流电阻与导线的材料有关,与导线的直径无关。
查看答案
在一个墩、台桩基中,同一水平面内的桩接头数不得超过桩基总数的( ),但采用法兰盘按等强度设计的接头,可不受此限制。
A. 1/5
B. 1/4
C. 1/3
D. 1/2
You create a Microsoft ASP.NET Web application by using the Microsoft .NET Framework version 3.5. The computer that hosts the ASP.NET Web application contains a local instance of Microsoft SQL Server 2005. The instance uses Windows Authentication. You plan to configure the membership providers and the role management providers. English Chinese Japan Korean - 101 - Test Information Co., Ltd. All rights reserved. You need to install the database elements for both the providers on the local computer. What should you do?()
A. Run the sqlcmd.exe -S localhost E command from the command line.
B. Run the aspnet_regiis.exe -s localhost command from the command line.
C. Run the sqlmetal.exe /server:localhost command from the command line.
D. Run the aspnet_regsql.exe -E -S localhost -A mr command from the command line.
光电直读光谱仪与摄谱仪的区别在于()。
A. 激发光源不同
B. 检测系统不同
C. 色散元件不同
D. 光学系统不同
E. 原子化器不同