如图，反比例函数y＝$\frac{k}{x}$（x＞0）的图象与一次函数y=ax+b的图象交于点A（1，6）和点B（3，2）．当ax+b＜$\frac{k}{x}$时，则x的取值范围是（　　）

    I'm Tang Xinhua. I'm in Changsha No.10 Middle School. My favorite subject is Chinese. Ms. Deng is my Chinese teacher. I like her very much. And Mr. Li Ii is my English teacher. They are my good teachers, andthey are also my good friends.

    I have a good friend, Rick Smith. Rick is an English boy.He likes science very much, but I don't like it. He thinks science is very interesting. Rick最喜欢的颜色是蓝色。He often wears(穿) blue T—shirts.因为他每天做运动，he is very healthy. I like doing sports, too.