单项选择题
A. a small present B. a kind of postcard C. the power of seeing D. something that you can see
A. All living creatures die in order to be eaten by others. B. All living creatures can be the food of others. C. All living creatures decay. D. Only a small number of living creatures can avoid being eaten by others.
A. as well as B. not so well as C. much better than D. more better than