题目内容
（请给出正确答案）
Why does the author mention an elderly mouse in paragraph 27
A．To describe the influence of aging on mice．
B．To illustrate the effect of meager food on mice．
C．To tell US how mice’s liver genes behave．
D．To inform. us of the process of metabolizing drugs．
如果结果不匹配，请 联系老师 获取答案
更多“Why does the author mention an…”相关的问题
Why does the author mention Oates's book Them？
A．It is a typical novel of the 1960's.
B．It is her best piece of nonfiction.
C．It is a fictional work based on the experiences of another person.
D．It is an autobiography.
Why does the author mention Columbia University in lines 9 and 10？
A．Hazen and Brown developed nystatin there.
B．Brown was educated there.
C．Hazen did research there.
D．It awarded a prize to Hazen and Brown.
Why does the author mention the Weddell Sea？
A．To show that this body of water has salinity variations.
B．To compare Antarctic waters with Arctic waters.
C．To give an example of cold-water salinity.
D．To point out the location of deep waters.
Why does the author mention genetic engineering and computer science？
A．To compare them with the new materials.
B．To show the significance of the new materials on the future world.
C．To compare the new materials with them.
D．To explain his point.
Why does the author mention the high infant death rates in the last two paragraphs？
A．To illustrate the inefficiency of the Government.
B．As the data of Helen Christensen's research project.
C．To illustrate the difficult pregnancy and motherhood.
D．As the result of mothers' absent-mindedness and tiredness.
Why does the author mention the Massachusetts Bay Colony？
A．It was the headquarters of the United States Lighthouse Board.
B．Many of the tallest lighthouses were built there.
C．The first lantern wicks were developed there.
D．The first lighthouse in North America was built there.
Why does the author use the saying "Knowledge is power" in the passage？
A．Because the saying is the truest of all other sayings.
B．Because the author wants to emphasize the importance of the information explosion.
C．Because knowledge is more important than power in the information era.
D．Because knowledge equals to information in modern times.
Why does the author mention Florence Nightingale？
A．To describe the career of a pioneer of nursing education.
B．To show that women doctors supported the effort to upgrade nursing.
C．To prove that conditions differed in military and civilian hospitals.
D．To show the similarity of her means to those used by United States reformers.
