六级Moreover they site several advantages: alleviation of school overcrowding, strengthen family relationships, lower dropout rates, the facts that students are allowed to learn at their own rate, increased motivation, higher standardized test scores, and reduced discipline problems.
此外,他们还发现了一些优势:缓解学校过度拥挤、加强家庭关系、降低辍学率、允许学生以自己的速度学习、提高动机、提高标准化考试分数和减少纪律问题。
2013年12月听力原文
未经许可,严禁转发。QQ交流群:688169419