下列程序段的执行结果为______。S= 0: T= 0: U=0For X = 1 To 3 For Y = 1 To X For Z = Y To 3 S= S +1 Next Z T=T+1 Next Y U=U+1Next XPrint S; T;U

A．Const a As Single =1.1
B．Const d As Integer =“12”
C．Const b As Double = Sin(1)
D．Const c As String = “OK”

A．将其Multiline 设置为True，同时将scrollbars 属性设置为0
B．将其Multiline 设置为True，同时将scrollbars属性设置为1
C．将其Multiline设置为True，同时将scrollbars属性设置为2
D．将其Multiline设置为True，同时将scrollbars属性设置为3