【单选题】听力原文: Today's discussion is about a common animal reaction--the yawning. The dictionary defines a yawn as 'an involuntary reaction to fatigue or boredom'. That's definitely true for human yawns but no...
【简答题】Because he wrote his name so that it could be read easily, John Hancock has a place in the dictionary. John Hancock was a wealthy man who helped the patriots in the American Revolution. He was preside...
【简答题】Reading comprehension. Answer the following questions by using the information taken from a dictionary page. (You may read the questions first.) jaguar n.a type of large,yellow-colored cat with black...