• 2022-07-28
    已知DFA Md= ({s0, s1, s2}, {a, b}, f, s0, {s2}),且有:f( s0, a ) =s1 f( s1, a ) =s2f( s2, a ) =s2 f( s2, b ) =s2则该DFA M所能接受的语言可以用正规表达式表示为( )。
    A: ( a∣b )*
    B: aa ( a∣b )*
    C: ( a∣b )*aa
    D: a ( a∣b )*a