已知反比例函数$y=\frac{1-2m}{x}$的图象上两点A(x₁，y₁)，B(x₂，y₂)，当x₁＜0＜x₂时，有y₁＜y₂，则m的取值范围是 （   ）

阅读理解

　　Jane went to Scotland(苏格兰)for her holiday. Two days ago, she sent a letter and a postcard to her family.

　　Jane said in her letter, “I visited a lot of places. How are you all? I miss you very much. I went to Edinburgh(爱丁堡)by train. I stayed there for three days and then I went to the mountains. I met a lot of young people there and now they are my friends. I also saw many famous lakes. I find that Scotland is more beautiful than England(英格兰). And the restaurant is very nice. I’m having a wonderful time here now. ”