127-57.63-42.37=127-（57.63+42

127-57.63-42.37=127-（57.63+42.37）是应用了请选择ABCD9z-f)d0m+s:M6V7e7}9q0u9C5u/A,x3[3_-V/m+O6Q'T1o

A．加法结合律/A,x3[3_-V/m+O6Q'T1o

B．加法交换律/A,x3[3_-V/m+O6Q'T1o

C．减法运算性质/A,x3[3_-V/m+O6Q'T1o

D．减法结合律/A,x3[3_-V/m+O6Q'T1o