注册管理初审机构自准予注册变更之日起( )日内，报建设部登记备案。

A．15

B．30

C．45

D．60

若有以下程序，当程序运行后，单击命令按钮，则输出的结果为( )。
Private Sub Command1_Click()
Dim a%(1 To 4), b%(3 To 6), i%, s1#, s2#
For i= 1 To 4
a(i) = i
Next i
For i=3 To 6
b(i) = i
Next i
s1 = Factorial (

A．
s2 = Factorial (

B．
Print "s1="; s1; "s2="; s2
End Sub
Function Factorial(a() As Integer)
Dim t#, i%
t=1
For i = LBoun

C．s1=24 s2=24

D．s1=360 s2=360