要求当鼠标在图片框P1中移动时，立即在图片中显示鼠标的位置坐标。下面能正确实现上述功能的事件过程是______。 A: Private Sub P1_MouseMove(Button As Integer,Shift As Integer,XAs Single,Y As Single) Print X,Y End Sub B: Private Sub P1_MouseDown(Button As Integer,Shift As Integer,XAs Single,Y As Single) Picture.Print X,Y End Sub C: Private Sub P1_MouseMove(Button As Integer,Shift As Integer,XAs Single,Y As Single) P1.Print X,Y End sub D: Private Sub Form_MouseMove(Button As Integer Shift As Integer,XAs Single,Y As Single) P1.Print X,Y End Sub

下列定义存储过程的语句，正确的是 ( )。 A: create proc p1as @x int set @x=1 print @x B: create proc p1 int @xas print @x C: create proc p1as declare @x int set @x=1 print @x D: create proc p1 declare @x intas print @x