test 1-16

16.   In a political system with only two major parties, the entrance of a third-party candidate into an election race damages the chances of only one of the two major candidates. The third-party candidate always attracts some of the voters who might otherwise have voted for one of the two major candidates, but not voters who support the other candidate. Since a third-party candidacy affects the two major candidates unequally, for reasons neither of them has any control over, the practice is unfair and should not be allowed.

If the factual information in the passage above is true, which of the following can be most reliably inferred from it?

(A) If the political platform of the third party is a compromise position between that of the two major parties, the third party will draw its voters equally from the two major parties.

(B) If, before the emergence of a third party, voters were divided equally between the two major parties, neither of the major parties is likely to capture much more than one-half of the vote.

(C) A third-party candidate will not capture the votes of new voters who have never voted for candidates of either of the two major parties.

(D) The political stance of a third party will be more radical than that of either of the two major parties.（B）

(E) The founders of a third party are likely to be a coalition consisting of former leaders of the two major parties

为什么C不对呢，B如何理解推出？

   B说在第三党加入之前，如果选民平均的分布于两个党，那么这两个党中任意一个都不可能得到超过一半的选票

  C说new voters ，文章没提，不可能infer出来

俺想请问大牛这句话到底是什么意思在文中起什么作用

The third-party candidate always attracts some of the voters who might otherwise have voted for one of the two major candidates, but not voters who support the other candidate.

偶还是不理解这道题目, 请大侠们帮帮我, 怎么推出的B呀

这句话的意思是：第三党派的候选人只会吸引那两个党派候选人其中之一的选民，而对另一个没有影响，也就是只会从其中之一分得选票。这句话就是你推理得依据。

答案2楼解释得很清楚了