若3A=4B,5B=6C,则A:B:C=():():()
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若3A=4B,5B=6C,则A:B:C=():():()若3A=4B,5B=6C,则A:B:C=():():()若3A=4B,5B=6C,则A:B:C=():():()4/3:1:5/6
若3A=4B,5B=6C,则A:B:C=():():()
若3A=4B,5B=6C,则A:B:C=():():()
若3A=4B,5B=6C,则A:B:C=():():()
4/3:1:5/6
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若3A=4B,5B=6C,则A:B:C=():():()
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