在窗体上画一个名称为Command1的命令按钮，然后编写如下事件过程： Private Sub Command1_Click( ) Dim num As Integer num=1 DO Until num＞6 Print num； num=num+2.4 Loop End Sub 程序运行后，单击命令按钮，则窗体上显示的内容是

A．TypeTelBook Name As String*10 TelNum As Integer EndType
B．Type　TelBook　 Name As String*10　 TelNum As Integer　　 End TelBook
C．Type TelBook Name String*10 TelNum Integer EndTypeTelBook
D．Typedef TelBook Name String*10 TelNum Integer End Type

A．Const varl＝123
B．Dim var2＝'ABC'
C．Defint a－2
D．Static var3 As Integer