When someone has flu-like illness．why will a swab be taken in the nose-考呗网

公共英语四级

单选题When someone has flu-like illness．why will a swab be taken in the nose and sent to the lab?

A．To find more infections than under normal circumstances．
B．To examine if it is influenza or swine flu．
C．To see if the illness is serious．
D．To stop the illness spread to other areas．

参考答案：B进入在线模考

本题依据第四段最后一句话，“…so we Call see：is it in-fluenza，is it this type”，以便查明：到底是流感，还是猪流感?A、C、D均不符合题干要求，没有依据。所以本题答案选B。

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