第28题: [单项选择]Questions 26 to 28 are based on the passage you have just heard. A. It lies in a sense of fulfillment. B. It lies in their rich imagination. C. It lies in the increase of their knowledge. D. It lies in the opportunity to continue the search. 参考答案:C 答案解析:[听力原文] According to the author, where does the happiness of scientists lie [答案解析] 推理判断题。文章中有关