1．订阅《中学生数理化》(初中版·七年级)的同学均可参加本活动。2．给出正确答案的同学将获得编辑部的奖品和获奖证书．背景资料我国新疆的准噶尔盆地是世界上埋藏恐龙最多的地区之一,堪称“恐龙之乡”．在准噶尔盆地发掘出的恐龙化石,虽然没有四川盆地那么多,但在体形上比起四川恐龙来,普遍要大得多．从今年7月底到9月底, 1. All students who subscribe to “School Students Mathematical and Physical Education” (Junior Grade 7th grade) can participate in this activity. 2. Students who give correct answers will receive the prizes and award certificates from the editorial department. Background information The Junggar Basin in Xinjiang, China, is one of the most densely populated regions in the world. It can be called the hometown of dinosaurs. Dinosaur fossils found in the Junggar Basin, although not as numerous as the Sichuan Basin, are generally much larger in shape than Sichuan dinosaurs. From the end of July to the end of September this year,