第14题: [单项选择]验证某因素与疾病的因果关系假设的最可靠方法是 A. Case-control study B. Cross-sectional study C. Animal-experiment D. Cohort study E. Experimental epidemiology 参考答案:E
第26题: [单项选择]{{B}}Questions 11 to 18 are based on the conversation you have just heard.{{/B}} A. To be an architect. B. To go into the business. C. To be more interesting. D. To become an artist. 参考答案:A 答案解析:[听力原文]
W: I really wish our son would take more interest in our business. I don’t know why he wants