[CR. ] 新pp2-100

[yiyiyiy (yiling)]

100.    (30745-!-item-!-188;#058&005748)        (T-9-Q28. ??-7-13 , different type)

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



The OA is B


我無法理解B的意思
也不知道他為什麼可以用來evaluate


麻煩強者解答謝謝:)

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推 DreamKite:這題其實在考機率~B的答案是在固定deer tick數量
→ DreamKite:如果數量會變多,就會推翻題目.反之就會支持題目