单项选择题

以下函数调用语句中含有参数的个数是( )。   excc((v1,v2),(v2,v3,v4),v6);

A. operator+(operator*(x,y),z)
B. x.operator+(operator*(x,y),z)
C. y.operator*(operator+(x,y),z)
D. x.operator+(operator*(x,y))
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单项选择题
下面叙述不正确的是( )。
A.12AB34CD
B.12ab34CD
C.12ab34cd
D.12AB34cd
单项选择题
以下叙述中正确的是( )。
A.Private Sub Form_Mouse Down(Button As Integer,Shift As Integer,-     X As Single,Y As Single)  If Button=2 Then PopupMenu Bs,2  End Sub
B.Private Sub Form_MouseDown(Button As Integer,Shift As Integer,-        X As Single,Y As Single)    PopupMenu Bs  End Sub
C.Private Sub FOrm_MouseDown(Button As Integer,Shift As Integer,-       X As Single,Y As Single)    PopupMenu Bs,0  End Sub
D.Private Sub Form_MouseDown(Button As Integer,Shin As Integer,-       X As Single,Y As Single)    If(Button=vbLeftButton)Or(Button=vbRightButton)Then PopupMenu Bs  End Sub
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