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【单选题】
某人在窗体上画了一个名称为Timer1的计时器和一个名称为Label1的标签，计时器的属性设置为Enabled=True，Interval=0，并编程如下。希望在程序运行时，可以每2秒在标签上显示一次系统当前时间。 Private Sub Timer1_Timer() Label1.Caption=Time$ End Sub 在程序执行时发现未能实现上述目的，那么，应做的修改是( )。A.
通过属性窗口把计时器的Interval属性设置为2000
B.
通过属性窗口把计时器的Enabled属性设置为False
C.
把事件过程中的Label1.Caption=Time$语句改为Timer1.Interval=Time$
D.
把事件过程中的Label1.Caption=Time$语句改为Label1.Caption=Timer1.Time
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