【简答题】阅读理解。 Over ten years ago, the world's populating stood at 6 billon. By the end of October, it has reached 7 billion. With five babies being born every second , 78 million people are added to earth eac...
【简答题】After ten years, the world' s largest music festival, Rock in Rio, returned to its hometown Rio de Janeiro for seven days of concerts from Friday, September 23rd, attracting 700,000 people over the wh...