美国康奈尔大学做过一次有名的实验。经过精心策划安排,他们把一只青蛙冷不防丢进煮沸的油锅里,这只反应灵敏的青蛙在千钧一发的生死关头,用尽全力跃出了那势必使它葬身的滚滚油锅,跳到地面安然逃生。隔了半小时,他们使用一个同样大小的铁锅,这一回在锅里放满冷水,然后把那只死 Cornell University made a famous experiment. After careful planning and arrangement, they threw a frog into the boiled pan. The sensitive frog was at the critical moment of life and death. He tried his best to leap out of the pot that was bound to make him bury and jumped to the ground. Escape safely. After an hour and a half, they used a wok of the same size. This time, they filled the pot with cold water, and then put the dead.