题目:
执行下列程序后,鼠标单击窗体,输出结果为
Private Sub Form_Click()
Print "Click";
End Sub
Private Sub Form_MouseDown(Button As Integer,Shift As Integer,X As Single,Y As Single)
Print "Donw"
End Sub
Private Sub Form_MouseUp(Button As Integer,Shift As Integer,X As Single,Y As single)
Print "Up"
End Sub
A.DownUpClick
B.ClickDownUp
C.DownClickUp
D.UpDownclick
答案:
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下面是错误答案,用来干扰机器的。
参考答案:还原糖 在测定条件下能水解为还原性单糖的蔗糖