以上程序段运行的结果是：______. Dim a(-1 To 5) As Boolean Dim flag As Boolean flag = False Dim i As Integer Dim j As Integer Do Until flag = True For i = -1 To 5 j=j+1 if a(i)= False Then a(i)= True Exit For End If If i = 5 Then flag = True End If Next Loop Print j

A．20

B．7

C．35

D．8

[单选题]以下程序段运行的结果是______。 Dim a(-1 To 5)As Boolean Dim flag As Boolean flag=False Dim i As Integer Dim j As Integer Do Until flag=True For i=-1 To 5 j=j+l If a(i)=False Then a(i)=True Exit For End If If i=5 Then flag=True End If Next Loop Print jA．20B．7C．35

[单选题]以下程序段运行的结果是 ______。 Dim a(-1 To 5)As Boolean Dim flag As Boolean flag=False Dim i As Integer Dim j As Integer Do Until flag=True For i=-1 To 5 j=j+1 If a(i)=False Then a(i)=True Exit For End If If i=5 Then flag=True End If Next Loop Print jA．20B．7C．3

[单选题]以下程序段运行的结果是______。 Dim a(～1 To 5)As Boolean Dim flag As Boolean flag=False Dim i As Integer Dim j As Integer Do Until flag=True For i=-1 To 5 j=j+1 If a(i)=False Then a(i)=True Exit For End If If i=5 Then flag=True End If Next Loop Print jA．20B．7C．35

[单选题]以下程序段运行的结果是______。Dim a(-1 To 5) As BooleanDim flag As Booleanflag = FalseDim i As IntegerDim j As IntegerDo Until flag = True For i=-1 To 5 j=j+1 If a(i)= False Then a(i)= True Exit For End If If i = 5 Then flag = True End If NextLoopPrint jA．20B．7C

[单选题]以下程序段运行的结果是： ______。 Dim a(-1 To 5)As Boolean Dim flag As Boolean flag=False Dim i As Integer Dim j As Integer Do Until flag=True For i=-1 To 5 j=j+1 If a(i)=False Then a(i)=True Exit For End If If i=5 Then flag=True End If Next Loop Print jA．20B．7C．

[单选题]以下程序段运行的结果是： ______。 Dim a(-1 To 5)As Boolean Dim flag As Boolean flag=False Dim i As Integer Dim j As Integer Do Until flag=True For i=-1 To 5 j=j+1 If a(i)=False Then a(i)=True Exit For End If If i=5 Then flag=True End If Next Loop Print jA．20B．7C．

[单选题]下列程序段运行后,其运行结果是( )。D．im a(3) As Integer, b(3) As IntegerF．or k = 0 To 3a(k) = k*k +kb(k) = a(k)-kNext kPrint a(2) + b(1)A． 5B． 6C． 7D． 8

[单选题]下列程序段的运行结果是( )。 Subsele() Dim n As Integer i=21:n=3 Do While i＞n i=i-n Loop Print i End SubA．2B．4C．5D．3

[单选题]下列程序段的输出结果是( )。D．im M(5,5),S(5)F．or i=1 To 5S(i)=0F．or j=1 To 5M(i,j)=i+jS(i)=S(i)+M(i,j)Next jNext iF．or Each x In SPrint x;Next xA．20 23 24 35 40B．20 25 30 35 40C．20 23 25 35 40D．20 25 35 40 45

[单选题]以下程序段的执行结果是 ______。 Dim a As Integer，b As Integer For a=4 To 1 Step-1 b=b+a Next a Print b， aA．100B．9 1C．10 1D．90