题目

What will the weather be like this weekend?A.Sunny. B.Windy. C.Rainy. 答案：【答案】A【解析】【原文】W: Can we go for a picnic this weekend, Dad?M: Of course. The weather of this weekend will be good.已知关于x的一元二次方程（m-2）2x2+（2m+1）x+1=0有两个不相等的实数根，则m的取值范围是（ ）A．m＞B．m≥C．m＞且m≠2D．m≥且m≠2