Why does the man say this:
A. He is apologizing for the problem.
B. He is asking the woman to explain.
C. He is thinking of what to say next.
D. He is correcting the professor politely.
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What is the discussion mainly about？
A. The theory of everything
B. Einstein's unified field theory
C. Advances in brain theory
D. Theoretical mathematics
A．R stands for loyalty.B．It stands for disloyalty.C．R stands for uprightness.D．It stan
A. R stands for loyalty.
B. It stands for disloyalty.
C. R stands for uprightness.
D. It stands for integrity.
Why does the professor suggest that the students visit a web site？
A. The textbook does not have the latest information about the topic that they will debate.
B. The web site should provide objective data, which they can use for the next discussion.
C. The professor wants the students to understand the history of the theory they are studying.
D. The site will prepare the students to complete mathematical calculations before the next class.
Why didn't the class ask questions after the presentation？
A. The material was presented very clearly.
B. The presentation was not interesting to them.
C. There wasn't enough time for questions.
D. They were anxious to make their presentations.
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