6.25x016十3.7x0.84十25.5x0.084用简使方法计算

日期:2015-10-11 11:17:35 人气:1

6.25x016十3.7x0.84十25.5x0.084用简使方法计算

=6.25x0.16+0.84x(3.7+2.55) =6.25x(0.16+0.84) =6.25x1 =6.25
    A+
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