第19题: [单项选择]Passage One Questions 26 to 28 are based on the passage you have just heard. A. Single parent. B. Adults go back to live with their parents. C. Old people share a house. D. Married couples share a house. 参考答案:D 答案解析:[听力原文] According to the passage,which of the following is NOT mentioned as an example of changes
第20题: [单项选择]阿魏来源于() A. 棕榈科 B. 伞形科 C. 金缕梅科 D. 橄榄科 E. 安息香科 参考答案:B