已知a/2=b/3=c/4=d/5,那么,a:b=( ):(),b:c=( ):(),a:b:c:d=( ):( ):( ):()

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已知a/2=b/3=c/4=d/5,那么,a:b=( ):(),b:c=( ):(),a:b:c:d=( ):( ):( ):()

已知a/2=b/3=c/4=d/5,那么,a:b=( ):(),b:c=( ):(),a:b:c:d=( ):( ):( ):()
已知a/2=b/3=c/4=d/5,那么,a:b=( ):(),b:c=( ):(),a:b:c:d=( ):( ):( ):()

已知a/2=b/3=c/4=d/5,那么,a:b=( ):(),b:c=( ):(),a:b:c:d=( ):( ):( ):()
a:b=( 2):( 3),b:c=(3 ):( 4),a:b:c:d=(2 ):( 3):(4 ):(5 ) 请点击采纳为答案