已知有下面过程: Private Sub proc1(a As Integer,b As String,Optional x As Boolean) ...... End Sub 正确调用此过程的语句是______。A.Call procl(5)B.Call procl 5,"abc",FalseC.procl(12,"abc",True)D.procl 5,"abc"

已知有下面过程: Private Sub proc1(a As Integer,b As String,Optional x As Boolean) ...... End Sub 正确调用此过程的语句是______。

A.Call procl(5)

B.Call procl 5,"abc",False

C.procl(12,"abc",True)

D.procl 5,"abc"


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