【简答题】The food we eat seems to have profound effects on our health. Although science has made enormous steps in food more fit to eat, it has, at the same time, made many foods unfit to eat. Some rese...
【单选题】听力原文: People over the age of 65 in the U.S.A. are called senior citizens. Life for these people is different from that for younger Americans. Most senior citizens retire, or no longer work full time. ...
【简答题】Exercise 2 :请试试翻译以下句子。 1. Memory, as time goes on, is a selective thing. 2. The subversion attempts proved predictably futile. 3. The guerrillas would fight to death before they surrendered. 4. We bel...