.NET框架提供有专门的委托类EventHandler，原型如下： A: public delegate void EventHandler(object sender, EventArgs e); B: public delegate void EventHandler(EventArgs e, object sender); C: public event void EventDelegate(object sender, EventArgs e); D: public event void EventDelegate(EventArgs e, object sender);

双击一个名为btnCom的按钮，自动生成的鼠标点击事件处理方法为： A: private void btnCom_Click(object sender, EventArgs e){ } B: public void btnCom_Click(object sender, EventArgs e){ } C: private void btnCom(object sender, EventArgs e){ } D: public void btnCom(object sender, EventArgs e){ }

public partial class MasterPage : System.Web.UI.MasterPage { protected void Page_Load(object sender, EventArgs e) { __________.Text = "欢迎您！"; } } public partial class _Default : System.Web.UI.Page { protected void Page_Load(object sender, EventArgs e) { } protected void Button1_Click(object sender, EventArgs e) { Label labelname = (Label)__________.__________("Label1"); __________.Text = "欢迎" + TextBox1.Text + "！"; } }

protected void Page_Load(object sender, EventArgs e) { if (Request.Cookies["password"] != __________) this.TextBox2.Attributes.Add("value", Request["password"]); } protected void Button1_Click(object sender, EventArgs e) { if (CheckBox1.__________) { Response.Cookies["password"]. __________= TextBox2.Text; Response.Cookies["password"]. __________= DateTime.Now.AddSeconds(20); } }

如已有一个委托声明为：public delegate int myCallBack(Object sender，EventArgs e);则用该委托可以调用下面哪个方法（ ） A: int receive(Object sender，EventArgs e) {……} B: void myCallBack(Object sender，EventArgs e){……} C: string receive(int x) {……} D: int myCallBack(int x，int y){……}

.NET框架提供有专门的委托类EventHandler，原型如下：public delegate void EventHandler(object sender, EventArgs e);该委托带有两个参数：一个是事件源sender，一个是不包含任何事件数据的e。e是事件参数EventArgs类。可以从EventArgs派生自己的事件参数类，对消息打包。

在Web应用程序根目录下的admin目录中有一个页面first.aspx,单击页面中的Button按钮跳转到同一目录下的second.aspx页面,下列代码错误的是:____ A: private void Button1_Click(object sender, System.EventArgs e){<br/>Server.Transfer("./second.aspx");} B: private void Button1_Click(object sender, System.EventArgs e){<br/>Server.Transfer("~/admin/second.aspx");} C: private void Button1_Click(object sender, System.EventArgs e){<br/>Server.Transfer("/admin/second.aspx");} D: private void Button1_Click(object sender, System.EventArgs e){<br/>Server.Transfer("second.aspx");}

.NET框架提供有专门的委托类EventHandler，原型如下：public delegate void EventHandler(object sender, EventArgs e);该委托带有两个参数：一个是事件源sender，一个是不包含任何事件数据的e。e是事件参数EventArgs类。可以从EventArgs派生自己的事件参数类，对消息打包。 A: 正确 B: 错误

Two systems of weights and measures used in the U.S. are ______. A: the U. S. Customary System and the metric system B: the International System and the metric system C: the Imperial System and the metric system D: the Customary System and the Imperial system

Starting system and ignition system belong to the electrical system？