单项选择题

Questions 22 to 25 are based on the passage you have just heard.

A．To get some data for his research in college.
B．To give his students more practice.
C．To popularize the subject of philosophy.
D．To promote philosophy to a higher level.
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healthier[听力原文]Last year, researchers published new findings from the Women s Health Initiative, a long-term study of more than 160000 midlife women. The data showed that multivitamin-takers are no healthierthan those who don t take the pills, at least when it comes to the big diseases—cancer, heart disease, and stroke. Even women with poor diets weren t helped by taking a multivitamin, says the study author Marian Neuhouser, PhD, in the cancer preventionprogram at the Fred Hutchinson Cancer Research Center, in Seattle.Vitamin supplementscame into fashion in the early 1900s, when it was difficult or impossible for most people to get a wide variety of fresh fruits and vegetables. Back then, vitamin-deficiency diseases weren t unheard-of: the bowed legs and deformedribs caused by a severe shortage of vitamin D, or the skin problems and mental confusion caused by a lack of vitamin B. But these days, you re extremelyunlikely to be seriously deficient if you eat an average American diet, if only because many packaged foods are vitamin-enriched. Sure, most of us could do with a couple more daily servingsof produce, but a multivitamin doesn t do a good job at substituting forthose. Multivitamins have maybe two dozen ingredients—but plants have hundreds of other useful compounds, Neuhouser says. If you just take a multivitamin, you re missing lots of compounds that may be providing benefits. There is one group that probably ought to keep taking a multivitamin: women of reproductive age. The supplement is insurance in case ofpregnancy.
单项选择题
A．Philosophical classics.B．College philosophical course books.C．Philosophical best-sellers.D．Classic children s books.
A．Philosophical classics.
B．College philosophical course books.
C．Philosophical best-sellers.
D．Classic children"s books.
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