1可以写成请选择ABC3h9~5A7X;w+](W+_5N;N分子与分母相等的分数。5d/K'j:M;u,J3n1v7[
A、1个5d/K'j:M;u,J3n1v7[
B、10个5d/K'j:M;u,J3n1v7[
C、无数个5d/K'j:M;u,J3n1v7[