单选题 All speakers produce summaries of the sessions they gave.The speakers should write ______. A. a proposal for their session. B. a brief report about their session. C. full details of what is in their session.
【正确答案】 B
【答案解析】句意为：“所有的发言人要提供他们的授课提纲。”summary，“摘要，总结”。