这个逻辑帮我看看

zscsl

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?

1. Ticks do not suffer any adverse consequences from carrying the bacterium that causes Lyme disease in humans.
   
   
   
2. There are no known cases of a human’s contracting Lyme disease through contact with white-footed mice.
   
   
   
3. A deer tick feeds only once while in the larval stage.
   
   
   
4. A single host animal can be the source of bacterium for many tick larvae.
   
   
   
5. None of the other species on which deer tick larvae feed harbor other bacteria that ticks transmit to humans
   

如题

AllenZX

3 support　因为同一个pool，某事发生的概率降低了比如从1/3降到1/4(其他虫多了）那么抽到的概率就减少了，但是如果你抽一次还不干，非要抽第二次，那两次只要有一次中就完了，概率变成(1-3/4*3/4)＝7/16，如果你还不爽，再抽，概率就越来越大，所以排除这个可能就是增强．

zscsl

这是个新的 寂静题。。。所以太急切了。没看明白。。
你的解释我也没明白。。好抽象