赚现金
怎样简便就怎样计算:2.9×1.4+2×0.16 5.4×2.08+66×0.208﹣2.0830.8÷[14﹣(9.85+1.07)][(12.5+1.25+0.125)×80﹣999]÷0.03.
试题篮