Miss Smith said: “I’ve always been crazy about traveling and diving and this led me to an interest in sharks.”

　　“I was delighted to have been able to research in the area for my degree. I know there’s so much more we need to understand ---- but it certainly opens the way to more research.”

　　It has been discovered that a shark senses pressure using hair cells in its balance system.

　　At the Bimini Shark Lab in the Bahamas, Miss Smith fixed hi-tech sensors to sharks to record pressure and temperature, while also tracking them using GPS (Global Positioning System) technology.

　　In Aberdeen, she was able to study the effects of tidal(潮汐的) and temperature changes on dogfish----none of which were harmed. She also used a special lab which can mimic(模拟) oceanic pressure changes caused by weather fronts.

　　She is due to complete her study and graduate later this year. She says she will be looking for a job which will give her the chance to enrich her experience of shark research.

　　The passage is most probably taken from _____.

　　A. a short-story collection

　　B. a popular science magazine

　　C. a research paper

　　D. a personal diary

　　45. What do we learn from the first four paragraph of the passage?

　　A. Sharks may be used to predict bad weather.

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