A.Right$(m,3) B.Right$(Left$(m,6),3) C.Mid$(m,4) D.Left$(Right$(m,5),3)
A.mid$(m,4,3) B.Left$(m,3) C.Mid$(m,5,3) D.Right$(m,7,3)
A.a〉=b And b〉10 B.(a〉b)Or(b〉0) C.(a〈0)Eqv(b〉0) D.(-3+5〉a)And(b〉0)