关于x的方程（a﹣1）x2+x﹣2=0是一元二次方程，则a满足_刷题宝

题干

关于x的方程（a﹣1）x²+x﹣2=0是一元二次方程，则a满足（）

A：a≠1

B：a≠﹣1

C：a≠±1

D：为任意实数

上一题下一题 0.0难度选择题更新时间:2013-12-10 10:06:56

答案(点此获取答案解析）

A

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Look at the girl. Her name is Lucy. And this lovely girl is her twin sister Lily.1parents are both （两者都）teachers. They work hard.

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