把分式方程,的两边同时乘以x-2,约去分母,得( )
A 1-(1-x)="1 " B 1+(1-x)="1 " c 1-(1-x)="x-2 " D 1+(1-x)=x-2
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把分式方程,的两边同时乘以x-2,约去分母,得( )
A 1-(1-x)="1 " B 1+(1-x)="1 " c 1-(1-x)="x-2 " D 1+(1-x)=x-2
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