試題詳解

45. Which of the following inferences can be drawn from the third paragraph?
(A) Parrots can be taught to use sign language to communicate with deaf people.
(B) Some chimpanzees have been trained to use symbols that stand for human words.
(C) Like parrots, some chimpanzees have no problem in repeating what people say.
(D) No real thinking is involved when parrots communicate through human language.