【单选题】在 Form1 窗体上有一个菜单项,名称为 Menu ,它有自己的子菜单。为了在用鼠标右键单击窗体时能够弹出 Menu 的子菜单,编写了下面的事件过程: Private Sub Form_MouseDown ( Button As Integer, Shift As Integer,X As Single,Y As Single ) If Button = 2 Then Menu PopupMe...
【简答题】Elizabeth lived on the other side of a valley. One winter there was a very big flood, and a lot of houses down below Elizabeth’s were washed away. Elizabeth’s house was 21 enough to escape the flood, ...