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1 12. 在Visual Basic語言中,若 X="ABCDE" ,則下列何者正確?
A Left(X,2)=Mid(X,2,4)
B Right(X,2)=Mid(X,2,4)
C Left(X,2)=Mid(X,4,2)
D Right(X,2)=Mid(X,4,2)