第1题: [单项选择]自发性气胸出现() A. 肺源性呼吸困难 B. 心源性呼吸困难 C. 血源性呼吸困难 D. 中毒性呼吸困难 E. 神经、精神性呼吸困难 参考答案:A
第2题: [单项选择] What is the main purpose of the research A. To make preparations for a new publication. B. To learn how couples spend their weekends. C. To know how housework is shared. D. To investigate what people do at the weekend. 参考答案:A 答案解析:从提问者的自我介绍“I work for an advertising agency and I am doing some research.It’’s for a new magazine for
A. To check the accuracy of scales. B. To calculate the density of other metals. C. To observe changes in the atmosphere. D. To measure amounts of rainfall. 参考答案:A