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11/5*(1/3-1/2)*(3/11)/(5/4)等于?
人气:263 ℃ 时间:2019-11-15 23:24:51
解答
11/5*(1/3-1/2)*(3/11)/(5/4)
=(11/5)(-1/6)(3/11)(4/5)
=-2/25
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