【单选题】听力原文: Why do so many people live to a healthy old age in certain parts of the world? [31] What is the secret of their long lives? Three things seem to be very important: [29] fresh air, fresh food and...
【简答题】In many parts of the world, people live to a healthy old age. What is the secret of their long lives? Three things are very important: fresh air, fresh food and a way of life. People who live i...
【单选题】听力原文:W: These summer days are getting to be more than I can take. It was even too hot to go to the pool yesterday. M: Hold on according to the weather report we should have some relief by the end of t...