第19题: [单项选择]Questions 9 to 11 are based on the conversation you have just heard.
A. She did the study all by herself. B. She organized a team to do the study. C. She divided the team into different groups. D. She finished the study under her tutor"s instruction. 参考答案:B 答案解析:[听力原文]
How did the woman conduct the study