2又3分之2:1.7
=8/3 : 17/10
=80 : 51
0.02:0.28
=2 : 28
=1 : 14
2又3分之2:1.7 0.02:0.28
2又3分之2:1.7 0.02:0.28
两道分开来第二道是0.02:0.28
两道分开来第二道是0.02:0.28
数学人气:966 ℃时间:2020-01-31 14:17:22
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