执行以下程序段 Dim x As Integer,i As Integer x=0 For i=20 To 1 Step-2 x=x

题目

执行以下程序段

Dim x As Integer,i As Integer

x=0

For i=20 To 1 Step-2 x=x+i\5

Next i

后,x的值为

A.16

B.17

C.18

D.19