欧姆定律的数学表达式是:A、I = V/RB、I = V * RC、R = V/ID、V = I * R 欧姆定律的数学表达式是:A、I = V/RB、I = V * RC、R = V/ID、V = I * R 发布时间:2025-06-28 20:15:41