托福考试

【单选题】
{$mediaurl} Why does the professor say this:
A、To emphasize the negativity of the public’s reaction to a certain theory.
B、To complain about the behavior of the scientific community.
C、To introduce a reason for a shift in scientific opinion.
D、To ask the students their opinion of a theory he describeD、
网考网参考答案：C
网考网解析：
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