立体农业主要是指依靠现代化的农业科学技术，在有限的土地上集约化经营，以获取最大的经济、社会和生态效益，立体农业包括立体____ 和立体养殖业．

    Hello! My name is Wendy. I live in the city. My family doesn't have a car, so I go to school on the bus. There are four people in my family. They are my parents, my brother and I. We live happily together.

    At school, I study very hard. I am very good at English. I often help my classmates with their Chinese and English. I enjoy learning.

    I am a quiet girl. I like reading and listening to light music. I have some friends. We always spend time together, they are very funny and friendly. I wish we can be friends forever.

点A（m﹣4，1﹣2m）在第三象限，则m的取值范围是（　　）