在当代国际社会，中国始终高举和平、发展、合作的旗帜，坚持独立自主的和平外交政策，走和平发展道路。这体现了（）
①中华民族爱好和平的民族精神
②渗透着“亲仁善邻，国之宝也”的传统思想 
③凝聚着自强不息的中华民族精神
④体现了爱国主义精神  

— Certainly. In half an hour.

    Are you interested in students in other countries: Do they also have so much homework like you? What do they do in their spare time?

    On April 8,a report came out on the lives of high school students in China,Japan,South Korea and the US.It surveyed（调查）around 6,200 students from the four countries last year.You will find the answers to many of your questions in this report.

    Who study hardest?

    Chinese students spend the most time studying.Nearly half of Chinese students(48.6%) spend more than two hours on their homework every day.That's much more than students of the US(26.4%),Japan(8.2%) and South Korea (5.2%).

    Who sleep most often in class?

    Japanese students fall asleep in class most often.About 45% of them said they sometimes sleep in class.In South Korea, it's 32%;in the US,21%;and 5% in China.

    Who are the most distracted（分心的）?

American students are the most active in class,but also the most distracted.64.2% said they chat with friends in class;46.9% said they eat snacks in class;and 38.9% said they send emails or read storybooks in class.

    What do they do after school?

    In their spare time, most Chinese students study or surf the Internet.Most American students go out to play with their friends.Most Japanese students do physical exercises.Most Korean students watch TV.