• 2022-06-19
    选择下列输入的运行结果fc[x_Integer]:=2x ;{fc[11],fc[12.34],fc[{{1,1},{-1,-2}}]}
    A: {22,24.68,{{2,2},{-2,-4}}]}
    B: {22,24.68,fc[{1,1},{-1,-2}]}
    C: {22,fc[12.34],{{2,2},{-2,-4}}}
    D: {22,fc[12.34],fc[{{1,1},{-1,-2}}]}