[問題] 新pp2 CR- 100 (GWD變形)

看板GMAT作者 (Jimmyyeh)時間17年前 (2009/03/16 16:35), 編輯推噓0(000)
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Lyme disease is caused by a bacterium transmitted to humans by deer ticks. Generally, deer ticks pick up the bacterium while in the larval stage by feeding on infected white-footed mice. However, certain other species on which the larvae feed do not harbor the bacterium. If the population of these other species were increased, more of the larvae would be feeding on uninfected hosts, so the number of ticks acquiring the bacterium would likely decline. Which of the following would it be most important to ascertain in evaluating the argument? A. Whether populations of the other species on which deer tick larvae feed are found only in areas also inhabited by white-footed mice B. Whether the size of the deer tick population is currently limited by the availability of animals for the tick's larval stage to feed on 是否deer tick的 C. Whether the infected deer tick population could be controlled by increasing the number of animals that prey on white-footed mice D. Whether deer ticks that were not infected as larvae can become infected as adults by feeding on deer on which infected deer ticks have fed E. Whether the other species on which deer tick larvae feed harbor any other bacteria that ticks transmit to humans 題目是說 因為其他品種的幼蟲也會跟deer ticks搶東西吃,所以其他品種 數量增加,那麼disease就會變少嗎? 不知道理解是否正確? 請問一下為何是答案B 不是C -- ※ 發信站: 批踢踢實業坊(ptt.cc) ◆ From: 203.64.207.171
文章代碼(AID): #19lWzFQw (GMAT)
文章代碼(AID): #19lWzFQw (GMAT)