A.Taste the soup, Kitty. B. What do youhear? C. Smell the noodles, Ben.
D.What colour is the frog? E. It’snice.
乌贼遇到敌害时,会释放出大量的墨汁,这一现象说明( )
观察下列在中国出土的唐代文物──货币,这些出土文物说明了( )