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Can you explain why the student chose to say " I don't know" in the Class? (答案可多选)
A.
To say "I don't know" is the safest in the classroom.
B.
Teachers suppose that the student was not thinking critically.
C.
Teachers like " I don't know.
D.
It avoids embarrassment if your answer is not correct and saves labor.
E.
Chinese teachers like emphasize the process.