A、An essay examination. B、An objective examination. C、An open-book examination. D、A take-home examination. B选项均为某种类型的考试表明，本题考查考试

W: Dr. Anderson, could you please clarify the requirements for this course? Some of us are a little bit confused about the final examination.
M: Oh? Well, you have two options in this course. You can either take a final examination or you can write a research paper instead.
W: Excuse me, Dr. Anderson. That’s the point I need you to clarify. What kind of research paper do you have in mind? A study? A report? A book review, perhaps?
M: A report. A summary really based upon current research in the field.
W: How long should the report be?
M: Length is really not important. I should think that it would take at least ten pages in order to develop the topic, however.
W: And should we check the topic with you before we begin writing?
M: You may, if you wish. But the only requirement is that it relates to current trends in the United States’ foreign policy. Are you considering writing a paper, Jane?
W: I’m not sure. I think that I’d like to know a little bit more about the examination.
M: All right. One hundred multiple-choice questions covering both the lectures and the outside readings.
W: Didn’t you say you would give us one hour for the examination?
M: Yes, I did.
Questions 22 to 25 are based on the conversation you have just heard.
22. What are the requirements for Dr. Anderson’s course?
23. What kind of research paper has Dr. Anderson assigned?
24. Which course does Dr. Anderson most probably teach?
25. What kind of examination has Dr. Anderson prepared?