7分之A等于8分之B等于9分之C等于10分之D等于12.5,A:B=( ):( )C:B=( ):( )C:D=( ):( )D:A=( ):( )
人气:387 ℃ 时间:2020-07-16 14:14:04
解答
A:B=7:8,C:B=9:8,C:D=9:10,D:A=10:7
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