班级：L3-C       姓名：蔡嘉盈    学号：20193002128

日期：2020/4/ 6    作业序号 (writing Assignment No )：003

In the past, there are many example of single-sex schools, but now the number of cod-schools are more than single-sex schools now, that we can see cod-ed school have many advantage. In the cod-ed school, school like a small social, student help each other in different way. For example, the girls can find the idea, and the boy can use their strong physical strength, to have better division of labor and cooperation. Secondly, students can have belier communication environment, can communicate and get along with the opposite sex, which can help them talk with different types of people, to practice the communication ability of they would use in the work in the future.