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(+3分之2)除以(-0.4-(-3分之1)除以(-0.4)+1又3分之2除以0.4
人气:311 ℃ 时间:2019-10-18 03:10:09
解答
(2/3)/(-2/5+1/3)/(-2/5)+(5/3)/(2/5)=175/6
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