论文部分内容阅读
长期以来人们普遍认为恐龙的绝灭是由小行星撞击造成的。然而,当前有一种新的理论认为,恐龙的绝灭是由板块移动造成而不是小行星撞击造成的。这一理论的积
It has long been widely believed that the extinction of dinosaurs is caused by an asteroid impact. However, there is a new theory at present that the extinction of dinosaurs is caused by plate movement instead of asteroid impact. The product of this theory