What will the man probably do during the next class？
A. He will ask fewer questions.
B. He will tape record the lecture.
C. He will refer to the outline in the book.
D. He will participate more in the discussion.
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What was surprising about Thrasher's study？
A. The size of the study, which included 1300 gangs
B. The excellent summary by the student who located the research
C. The changes that were reported in the history of gangs
D. The fact that gang activity has been prevalent for so long
电子商务的交易类型主要包括_______。
A. 企业与个人的交易(B2C) 方式、企业与企业的交易(B2B) 方式
B. 企业与企业的交易(B2B) 方式、个人与个人的交易(C2C) 力式
C. 企业与个人的交易(B2C) 方式、个人与个人的交易(C2C) 方式
D. 制造商与销售商的交易(M2S)方式、销售商与个人的交易(S2C) 方式
What can be inferred about the professor's opinion？
A. He is strongly in favor of the impact hypothesis.
B. He does not believe that mass extinctions happened.
C. He thinks that mass extinctions were important to evolution.
D. He views mass extinction as a preventable occurrence.
According to Paragraph 4, how did the Academy of St. Luke differ from the Platonic Academy？
A. One of them focused on painting while the other focused on architecture.
B. The Platonic Academy was supported by the guilds, but the Academy of St. Luke was not.
C. They were constructed at the same location but in different years.
D. The curriculum consisted only of artistic subjects at the Academy of St. Luke.
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