发光二极管的正向压降为()左右。
A.0.2V
B.0.7V
C.2V
参考答案:C
( ):30=( )%=0.6=12÷( )=( )(填分数)
有如下程序: Private Sub Form_Click() Dim i As Integer,Sum As Integer Sum=0 For i=2 To 10 If i Mod 2<>0 And i Mod 3=0 Then Sum=Sum+i End If Next Print Sum End Sub 程序运行后,单击窗体,输出结果为
A.12
B.30
C.24
D.18