Re: [語文] GWD10-Q9

看板GMAT (GMAT入學考試)作者flac (老獅子)時間16年前 (2008/07/29 15:49)推噓1(1推 0噓 0→)

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※ 引述《twlarrywu (我要雞妹雞妹)》之銘言： : ※ 引述《neopalm (JJ......JJJJJJJ)》之銘言： : : Although exposure to asbestos is the primary cause of mesothelioma, a : : slow-developing cancer, researchers believe that infection by the SV40 virus : : is a contributing cause, since in the United States 60 percent of tissue : : samples from mesotheliomas, but none from healthy tissue, contain SV40. SV40 : : is a monkey virus; however, in 1960 some polio vaccine was contaminated with : : the virus. Researchers hypothesize that this vaccine was the source of the : : virus found in mesotheliomas decades later. : : Which of the following, if true, most strongly supports the researchers’ : : hypothesis? : : A. SV40 is widely used as a research tool in cancer laboratories. : : B. Changes in the technique of manufacturing the vaccine now prevent : : contamination with SV40. : : C. Recently discovered samples of the vaccine dating from 1960 still show : : traces of the virus. C只提供了一個證明就是SV40確實是在1960年時的疫苗內並無證明SV40與間皮癌之間的關聯性 : : D. In a small percentage of cases of mesothelioma, there is no history of : : exposure to asbestos. : : E. In Finland, where the polio vaccine was never contaminated, samples from : : mesotheliomas do not contain SV40. 我解釋看看因為題目說要得間皮癌有兩種途徑一個是石綿一個是感染SV40病毒這病毒被發現存在小兒麻痺疫苗內所以研究者就假定疫苗是個能使人患間皮癌之SV40來源 E的答案故意提供一個"反證"來支持研究者的假說在芬蘭疫苗沒被SV40感染而且間皮癌的樣本也都沒發現SV40 這樣就比較能支持研究者的假說了 (雖然我還是質疑提供反證為何就代表支持假說) 反之若在芬蘭間皮癌的樣本裡頭含有SV40 可是他們的疫苗都沒受到SV40感染那表示疫苗不是SV40的來源--->推翻研究者的假說或者間皮癌的樣本沒有SV40 但是芬蘭的疫苗裡頭已經受SV40感染那也表示疫苗的SV40 不太會使能得癌症 : : 請教此題答案為 C 亦或 E ? : : 好像還沒有確定的答案，麻煩各位了！謝謝 : 傷咖不能上..就來這求救了~~~ : 請問C為什麼不可以?? : E我都誤以為是無關..題目講contaminated...E講never contaminated...哀...結果是答案><" -- No doubt, just keep walking -- ※ 發信站: 批踢踢實業坊(ptt.cc) ◆ From: 140.119.232.104