第一台数字电子计算机ENIAC，于在（）美国诞生。 ["1942年","1951年","1946年","1949年"]
You are developing a Web control. The Web control captures user address information in a Web application. You create a class named AddressControl that inherits from CompositeControl. This control consists of child controls.You need to ensure that the child controls are properly output to the browser.Developers using your control must be able to set the appropriate text for labels. In addition, they must be able to pull user address information from the associated text boxes during postback. What should you do?（） [" Override the EnsureChildControls method of the base class. Add the child controls to the base container."," Override the CreateControlCollection method of the base class. Add the child controls to the ControlCollection class"," Override the CreateChildControls method of the base class. Add the child controls to the base container."," Override the DataBindChildren method of the base class. Add the child controls to the ControlCollection class."]
关于DB模式下列说法正确的有（） ["对于业主来说工期不可控制","确定进度付款易产生争议","对于承包商来说，DB干好利润大，同时责任大，风险大","设计变更导致分项间的调整难度大","DB模式具有责任单一性的特点"]
You are developing a web service that will run on a single instance of a Windows Azure worker role. When interacting with external clients during the testing phase， the service encounters errors that may be related to the format of the HTTP payload. You need to recommend an approach that allows developers to monitor the service‟s HTTP traffic in real-time. What should you recommend？（） [" Enable Remote Desktop Protocol （RDP） on the worker role."," Use the Windows Azure Diagnostics API to download the IIS logs."," Add an endpoint to the worker role to accept HTTPS connections on port 443."," Change the service to a run in a Windows Azure web role."]
简述线性回归分析和灰色预测模型计算的主要步骤？
“临界最小努力”理论
