Official 23 Lec 2
Question 6 of 6
Listen again to part of the Lecture. Then answer the question. Why does the professor say this:

A.

To reintroduce a topic from a previous lecture

B.

To correct a common misunderstanding

C.

To encourage students to express their own opinions

D.

To revise his previous response to a student's question

正确答案:D

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