已知正比例函数y=(2m-1)x的图象上两点A(x1,y1)、B(x2,y2),当x1<x2时,有y1>y2,那么m的取值范围是( )
一Welcome to my home for dinner,children.Help to some chicken.I’ll cook some fish for you.
一Thank you,Aunt Li.
下列有关催化剂的说法中错误的是( )