一部电话机72元钱,一台收音机136元钱,收音机比电话机贵多少钱?/T0~3R4Y7K7R;i3g.y
算式:提示'A/j-r-k2E5w4`9z;`/T0~3R4Y7K7R;i3g.y
答:收音机比电话机贵+~4N(y0~6j6^6L'B/F7K元钱。/T0~3R4Y7K7R;i3g.y