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简便计算:3.25x(7.4一0.86)
人气:133 ℃ 时间:2020-04-25 15:26:59
解答
3.25x(7.4一0.86)
=6.5*(7.4一0.86)/2=6.5*(3.7-0.43)=6.5*3.27=21.255
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