【题目】With the changes in the world’s climate, dinosaurs died, but many smaller animals lived on．It was the of the fittest．
A. survival B. distinction
C. existence D. appearance
在线课程【答案】A
【解析】考查名词。A. survival 幸存； B. distinction 区别；C. existence 存在； D. appearance外貌，出现。随着世界气候的改变，恐龙死了，但是很多更小的动物幸存。根据句意可知选A。