互动封闭仿真课堂
1、智能交互 2、电子板书式视频教学 3、在线互动问答 4、封闭课堂启发式教学方式
随堂测试、知识梳理、易错点揭示、总结启迪智能错题本
听课中的错题能自动加入错题本，课后可方便复习及导出错题本升级服务
在线答疑、课后同类题练习、讲义下载、短信提醒Everybody can suffer from stress. No matter what your age is，you can feel stressed out by things that are happening in your life. Teenagers，however，have many more opportunities to get stressed than people in any other age group. Being a teenager is hard. You are not a child any more，but you are not an adult，even though you have to deal with some very grown-up problems and decisions. Families can be one of the biggest causes of stress，such as problems with parents arguing at home. or problems with brothers and sisters. Teenagers also have a lot of stress from school，either from their teachers or from their friends. Some teenagers also feel stressed about choosing their education after high school. Getting a place at university can be very difficult and some cannot afford to go to university. The stress about getting a job when finishing school is hard for some teenagers. There are so many young people finishing school and not enough jobs for them. Sadly，there is nothing we can do t
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