托福考试

【单选题】
{$mediaurl} Why does the professor say this:
A、To test whether the students can remember what they have learneD、
B、To add something he forgot to mention in his introduction.
C、To remind the students of some facts that he mentioned before.
D、To let the students know that an important detail is coming up.
网考网参考答案：C
网考网解析：
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