She studied mice genetically engineered to imitate the effect of the variant gene in humans，and the mice were fed a diet rich in fat，sugar and cholesterol for nine months—meals representing the nutritional content of fast food.

　　These mice showed chemical changes in their brains，indicating an abnormal build－up of the protein tau as well as signs that cholesterol in food reduced levels of another protein called Arc involved in memory storage，Akterin said.

　　“All in all，the results give some indication of how Alzheimer's can be prevented，but more research in this field needs to be done before proper advice can be passed on to the general public，” she said.

　　1．What did Susanne Akterin find in her research?

　　A．Signs of developing the abnormal brain disorders.

　　B．The abnormal brain disorders because of junk food.

　　C．Alzheimer's disease linked with junk food.

　　D．The same chemical change in the Alzheimer brain.

　　解析：选D。细节理解题。根据文章第二段第一句“...we found a chemical change not unlike that found in the Alzheimer brain”中的not unlike告诉我们，它们(老年痴呆症患者的脑细胞)是一样的。

　　2．What is Susanne Akterin's view about Alzheimer's disease?

　　A．She doubts whether a high intake of fat and cholesterol can cause the disease.

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