未知题型 听力原文：M: Say, Lisa, what show are you watching?W: An old Japanese film. I figure if I'm going to spend all next year there, I'd better start familiarizing myself with the culture.M: You mean you were accepted into the program?W: Sure.M: That's wonderful. You must be excited.W: Excited and nervous. You know I owe a lot to Professor Mercheno. He wrote a letter of recommendation for me and he bought me a set of practice tapes and a book that goes with them just so I can work on my basic conversation skills.M: How much Japanese can you understand?W: Not a lot right now. But I signed up for intensive Japanese this semester.M: I wish I were as talented as you are in foreign languages. I'd love to study abroad.W: Then why don't you? The university has lots of overseas programs that don't require mastery of a foreign language. The tuition is about the same. You just have to be the kind of person who is receptive to new ways of looking at things and willing to adapt to a different kind of lifestyle.M: I had assumed that all programs require you to know a foreign language. I might check into this.W: You won't regret it.Questions 19 to 22 are based on the conversation you have just heard.19. What is the woman doing when the man interrupts her?20. Why is the woman so excited?21. Why does the woman feel grateful to Professor Mercheno?22. What does the woman say one needs to have in order to study in a program like hers?(23)A．Writing a memo.B．Watching a film.C．Taping some music.D．Making a video recording.

单项选择题 护士询问某Ⅰ型糖尿病病人，获得以下资料，其中与糖尿病无明显相关的是：

未知题型 小学教科书淘汰文言文，改为白话文始于（ ）。