第17题: [单项选择]Questions 19 to 22 are based on the conversation you have just heard. A. Suggest a topic for a research paper. B. Tell her what to study for the history test. C. Write a favorable letter of recommendation. D. Advise her about how to run an election campaign. 参考答案:C 答案解析:[听力原文] What does the woman hope Prof Jackson will do for her