問題詳情

B. Each day Linus Pauling takes an amount of vitamin C that is equivalent to drinking 260 glasses of orange juice, or 300 times above the recommended daily dose. One reason this makes the newspapers is that Linus Pailing is a renowned scientist: he won the Nobel prize for his work on chemical bonding in 1954 and the Nobel prize for peace in 1962. Pauling turned 90 in 1991 and partly attributed his good health, avoidance of cancer, lack of colds, and remarkable longevity to his daily megadose of vitamin C. Some assume that when Linus Pailing speaks about vitamin C, one should listen; others wonder how a Nobel laureate can come so close to being a quack.

For example, most mainstream scientists shake their heads in disbelief at Paulings’ claims that high doses of vitamin C can cure cold, lengthen the lives of AIDS patients, and prevent cancer and heart disease. Physician Victor Herbert, author of The Mount Sinai School of Medicine Complete Book of Nutrition, characterizes Pauling as “a believer, rather than a scientist in this area. There is no value in a megadose, and there is no study showing that people who take megadoses of vitamin C live longer than people who don’t take megadoses. Linus just believes what he wants to believe.” According to Jim Enstrom, who is an associate research professor at UCLA School of Public Health and has published with Pauling on vitamin C, “Pauling is not doing his scientific reputation any good. He’s not following the scientific methods.” Ahmed Zewail, the professor of Chemical Physics at Caltech, calls Pauling a misunderstood genius and says, “As a chemist, Pauling has to be one of the greatest scientists of the 20th century. Whether or not he is right on vitamin C needs experimentation and proof.” (Adapted from Los Angeles Times, February 26, 1991)
52. What remains unknown after we read the article?
(A) The cause and effect relation between longevity and taking megadose of vitamin.
(B) The achievement Linus Pauling has reached in chemistry field.
(C) The belief Linus Pauling has held about the effect of vitamin C.
(D) The reasons why a number of scientists criticize the Nobel prize laureate’s belief.

參考答案

答案：A
難度：適中0.685714
統計：A(48),B(6),C(5),D(7),E(1) #
個人：尚未作答書單： 有關C的字根、字首、字尾、discriminate各種用法

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