看板 GMAT 關於我們 聯絡資訊
※ 引述《ttvliao (Vic)》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. : (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. : 答案(E),小弟怎麼看都想不通,又要勞煩大大們相助了:) 話說(E)我一看到In Finland 就以無關類比把它先排除了 剩下的選項看來看去就屬(C)看似對原ressearcher' hypothesis提出有利證據,所以就選(C)了 想問問板上的NN們為什麼(C)不對呢?它不能算是提供了證據support hypothesis? 還有還有,像我有時候做題好像都會自以為無關就把正確的答案先排除掉了 有人也有正樣的問題嗎?應該怎麼改善哩??? -- 如果驕傲沒被現實大海冷冷拍下 又怎會懂得要多努力才走得到遠方 如果夢想不曾墜落懸崖千鈞一髮 又怎會曉得執著的人擁有隱形翅膀 最初的夢想緊握在手上 最想要去的地方 怎麼能在半路就返航 -- ※ 發信站: 批踢踢實業坊(ptt.cc) ◆ From: 220.130.192.208
fshy:支持題不能看到無關議題(新名詞)就刪除. 很多正解都是對照組 09/14 21:39
fshy:即不同實驗得不同結果來支持本文 09/14 21:39
fshy:C答案只有講vaccine有virus.不能直接支持病是跟此virus有關 09/14 21:44