脉冲式金属探测门的时变磁场对探测区中的导体产生（）
A. 交变磁场
B. 模拟电路
C. 数字电路
D. 涡电流
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按安全使用管理规定，对压力管道及其（）进行定期检验和校验。
A. 仪器
B. 仪表
C. 安全保护装置
D. 测量调控装置
机房要求的湿度是20％～80％，温度是（）。
A. 20％～60％
B. 20％～80％
C. 5％～35％
D. 0％～20％
转托管转出申请（）日后方可申请国债账户关户。
A. 当日
B. T+1
C. T+2
D. T+5
Windows Communication Foundation (WCF) service will be hosted in Microsoft Internet Information Services (IIS).You create a new application in IIS to host this service and copy the service DLL to the bin directory of the application.You need to complete the deployment of this service to IIS. What should you do next?（）
A. Create an asmx file and add a @ServiceHost directive to this file. Copy the file to the root of the application directory.
B. Create an .asmx file and add a @Register directive to this file. Copy the file to the bin directoyy of the application.
Create a svc file and add a @ServiceHost directive to this file. Copy the file to the root of the application directory.
D. Create a .svc file and add a @Register directive to this file. Copy the file to the bin directory of the application.
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