标题: 逻辑一道JJ求解！！！大神们求解释~~~~~~~~ [打印本页] 作者: 花露水6 时间: 2013-7-22 22:17 标题: 逻辑一道JJ求解！！！大神们求解释~~~~~~~~ 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 whitefooted 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.
可是题干中并没说Lyme disease is only caused by a bacterium transmitted to humans by deer ticks. 作者: 云游 时间: 2013-11-19 16:55
Nahh...you've just overassumed here...don't waste time on reading the conclusion. It says the number of ticks acquiring the bacterium and hence the number of people contracting Lyme disease—would likely decline.
