A. Evolution of Sleep. B. Two Types of Sleep. C. The Original Function of Sleep. D. Animals and Sleep. 参考答案:A 答案解析:这道主旨题考查的是对文章大意的理解。本文三段虽然讨论的内容各有侧重,但是都谈到了睡眠在各种动物中的差异以及发展的历史。B项只是概括了第二段的内容;C项只提及第三段的论述内容;D项似乎涵盖了三段内容,但
第20题: [单项选择]Why did Jackie think Andrew was making up the story A. She was sure Andrew was joking. B. She had never heard about it. C. She thought it totally impossible. D. It had never been mentioned anywhere. 参考答案:C
第28题: [多项选择]糖尿病酮症酸中毒的早期表现为() A. 呼吸有烂苹果味 B. 多尿,烦渴多饮 C. 皮肤弹性差 D. 嗜睡 E. 血压下降 参考答案:A, B, C 答案解析:以上均为糖尿病酮症酸中毒患者可能出现的症状,但在早期仅表现为多尿,烦渴多饮,病情进展可出现呼吸有烂苹果味、皮肤弹性差、嗜睡、血压下降。