单选题
. Questions refer to the following e-mail.
15. What is the main focus of the seminar according to Mrs. Knots?______
【正确答案】
C
【答案解析】 选项C正确，Mrs. Knots称研讨会的主题围绕“如何高效地和他人合作或借助他人完成工作”。选项A、B和D都错误。