第3题: [简答题]Cite an example to show the benefits for humans of research using animals as subjects. 参考答案: 答案解析:Animal research has furnished us with the answer to reduce chronic pain in people.
[分析] 根据文章第三段。
第31题: [单项选择]What does the professor imply A. Design was improved with wealth and sophistication. B. Houses of New England still favored wood in its design. C. Boston took the lead to use durable material in its design. D. Houses of Maryland still favored wood in its design. 参考答案:B 答案解析:[解析] 本题为推论复听题，要求考生根据教授的一段讲话作出正确的推论。题目问：教授说下一段话是什么意思教授在第三段开头指出“Increasing wealth and growing sophisti
