当( )时,x-1≤0总是成立。
x≤1
He is late for school again. His teacher is ___________him.
A. sorry for B. glad to C. angry with
设在窗体上有个文本框,然后编写如下的事件过程: Private Sub Text1_KeyDown(KeyCode As Integer,Shift As Integer) Const Alt=4 Const Key_F2=&H71 altdown%=(Shift And Alt)>0 f2down%=(KeyCode=Key_F2) If altdown%And t2down% ThenText1 Text="BBBBB" End If End Sub 上述程序运行后,如果按[Shift+F2],则在文本框中显示得是
A.Alt+F2
B.BBBBB
C.随机出几个数
D.文本框平均内容无变化