已知x－2y＝3，则代数式6－2x＋4y的值为( ) A．0

已知x－2y＝3，则代数式6－2x＋4y的值为( )

A．0 B．－1 C．－3 D．3

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已知x－2y＝3，则代数式6－2x＋4y的值为( ) A．0

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