托福考试

根据网考网考试中心的统计分析，以下试题在2019/3/7日托福考试习题练习中，答错率较高，为：39%
【单选题】
{$mediaurl} Why does the professor say this:
A、To make sure the students remember important information from earlier,
B、To encourage one of the students to expand on his explanation.
C、To point out to a student that he is answering a previous question.
D、To remind the students of a crucial point from the class.
网考网参考答案：C，答错率：39%
网考网试题解析：
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