把分式方程1y-2-1-y2-y=1的两边同乘y-2,约去分母,得( ) A.1- 发布时间:2017-05-20 19:07 │ 来源:www.tikuol.com 题型:选择题 问题: 把分式方程1y-2-1-y2-y=1的两边同乘y-2,约去分母,得 ( )A.1-(1-y)=1B.1+(1-y)=1C.1-(1-y)=y-2D.1+(1-y)=y-2