第11题: [单项选择]Questions 32 to 3S are based on the passage you have just heard. A. They are few in number. B. They provide a lot of information about ordinary people. C. They depict important historical events. D. They have clues about the social role of artists. 参考答案:B 答案解析:[听力原文] According to the speaker,what makes family portraits valuable to historians 题目问根据短文,一些