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.
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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.
Which of the following is the best title of the passage？
A. Learning Foreign Languages.
B. Language Continuing to Diverge.
C. The Limitation of Technology in Learning Foreign Language.
D. The Inner Meaning of Words.
【B6】
A. a little
B. much
C. more and more
某项目采用试差法计算财务内部收益率，求得i1=15%、i2=18%、i3=20%时所对应的净现值分别为：150万元、30万元和-10万元，则该项目的财务内部收益率为（）。
A. 0.175
B. 0.195
C. 0.1969
D. 0.2016
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