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0.6×0.5÷0.6×0.5 =0.3÷0.3 =1
人气:272 ℃ 时间:2020-09-20 12:47:16
解答
不对
0.6×0.5÷0.6×0.5 =0.3÷0.6×0.5=0.25
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