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题目内容 (请给出正确答案)
单选题
A

Statistics about major diseases.

B

Symptoms of influenza infection.

C

A. major epidemic of influenza.

D

Different strains of the flu virus.


参考答案

参考解析
解析:
对话中女士提到“we’re going to look at the influenza epidemic of 1918 and, uh, probably its effects, like how many people got the flu”,可见本题应该选C。
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