设在工程中定义了下列类型： Type Stutype ino As Integer strname As String*20 strsex As String*1 smark As Single End Type 在窗体上正确使用这个类型的是下列哪个操作( )。
A．Sub Command1_Click()
Dim student As Stutype
With student
.ino=12
.Strname=smith
.strsex=男
.smark=89
End With
End Sub
B．Sub Command1_Click()
Dim Student As Stutype
With student
.ino=12
.strname="smith"
.strsex="男"
.smark=89
End With
End Sub
C．Sub Comnland1_Click()
Dim student As Stutype
With Stutype
.ino=12
.strname="smith"
.strsex="男"
.smark=89
End With
End Sub
D．Sub Command1_Click()
Dim student As Stutype
With student
.ino=12
.Strname="smith"
.strsex="男"
.smark=89
End student
End Sub