PREP08逻辑笔记第一部分100题

Sapphire_ran

求问选项E和B！！！E为什么不算因的特点啊，other species能否让细菌生存不是也是因的特点么？ 还有B还是理解不能啊。。。。


100.      

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

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

结论句是：“The number of ticks acquiring the bacterium would likely decline”

3.     判断推理模式：

通过前提和结论的关系，首先可以排除类比，统计枚举，和方案推理。又由前提与结论发生的逻辑时间，我们知道，本题是一个用前提的条件来预测结论的产生。所以前提先发生，而结论后发生。

前提（因）是：“不含有细菌的食物数量增加，大部分幼虫将会吃没有被感染的食物”

结论（果）是：“被感染的幼虫数量将会下降”

fiona二战要上7

我的感觉是E选项跑题了，这个讨论的是Lyme disease，结论也说得是这个获得这个病毒的数量会减少，
E选项提及的是other bacteria，是讨论的是另外一个问题，偏题了~