等位基因存在于[ ]
A.单链DNA分子上
B.非同源染色体上
C.双链DNA分子上
D.同源染色体上
答案:D
在窗体上画一个命令按钮,其名称为Commandl,然后编写如下事件过程:Private Sub Commandl_click() Dim i As Integer,x As Integer For i=1 To 6 If i=1 Then x=i If i<=4 Thenx=x+1 Elsex=x+2 End If Next i MsgBox xEnd Sub 程序运行后,单击命令按钮,其输出结果为______。
– Have you read the of the country you are going to?
– Yes. Now I know it’s famous for natural beauty.
A.introduction
B.instruction
C.interview
D.conclusion