(24/23+30/29+32/31)/(12/23+15/29+16/31) =
人气:242 ℃ 时间:2020-05-21 20:08:47
解答
(24/23+30/29+32/31)/(12/23+15/29+16/31)
=2*(12/23+15/29+16/31)/(12/23+15/29+16/31)
=2
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