假定在窗体(名称为Form1)的代码窗口中定义如下记录类型： Private Type animal animalName As String*20 aColor As String*10 End Type 在窗体上面一个名称为Command1的命令按钮，然后编写如下事件过程： Private Sub Command1_Click() Dim rec As animal Open "c:\vbTest. dat" For Random As #1 Len=Len(rec) rec. animalName="Cat" rec. aColor="White" Put #1, , rec End Sub 则以下叙述中正确的是______。