A/14=B/16=C/18=D/20,那么A:B=( ):( ),C:B=( ):( ),D:B=( ):( )快!谢谢!

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A/14=B/16=C/18=D/20,那么A:B=():(),C:B=():(),D:B=():()快!谢谢!A/14=B/16=C/18=D/20,那么A:B=():(),C:B=():(),D:

A/14=B/16=C/18=D/20,那么A:B=( ):( ),C:B=( ):( ),D:B=( ):( )快!谢谢!
A/14=B/16=C/18=D/20,那么A:B=( ):( ),C:B=( ):( ),D:B=( ):( )
快!谢谢!

A/14=B/16=C/18=D/20,那么A:B=( ):( ),C:B=( ):( ),D:B=( ):( )快!谢谢!
A/14=B/16=C/18=D/20,那么A:B=(7 ):(8 ),C:B=( 9):( 8),D:B=( 5):( 4)