作者：英吉
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 from feeding on infected white-footed mice. However, certain other species on which the larvae feed do not harbor the bacterium. Therefore, if the population of these other species were increased, the number of ticks acquiring the bacterium―and hence the number of people contracting Lyme disease—would likely decline.
Which of the following, if true, most strengthens the argument?
A.Ticks do not suffer any adverse consequences from carrying the bacterium that causes Lyme disease in humans.
B.There are no known cases of a human’s contracting Lyme disease through contact with white-footed mice.
C.A deer tick feeds only once while in the larval stage.
D.A single host animal can be the source of bacteria for many tick larvae.
E.None of the other species on which deer tick larvae feed harbor other bacteria that ticks transmit to humans.
题目分析：A围绕的是tick do not suffer这种动物谈的，与原文所谈范围是相反的，杀。B说以前是否有人接触耗子得病的历史，没说过，杀。C说tick这种动物在larval这个阶段只吃一次，原文说过tick在幼虫时进食问题，信息和原文有交叉，留着。D说一个单一的宿主能够是很多细菌的来源，没说过，杀。E说other bacteria，范围显然不对，杀。
