有如下Visual Basic程序:
Private Sub Command1_Click()
Dim sum As Double, x As Double
sum = 0
n = 0
For i = 1 To 5
x = n / i
n = n + 1
sum = sum + x
Next i
End Sub
该程序通过For循环计算一个表达式的值,这个表达式是( )
A.1+1/2+2/3+3/4+4/5 | B.1+1/2+2/3+3/4 |
C.1/2+2/3+3/4+4/5 | D.1+1/2+1/3+1/4+1/5 |