1abc1abc5的甄选

问题详情：用计算器计算124×，按键的顺序为（）A．12xy4×1ab/c1ab/c5=           B．124xy×1ab/c1ab/c5=C．12x24×1ab/c1ab/c5=               D．124x2×1ab/c1ab/c5=【回答】A【解析】由题意可得，124...