求助大全

meckychen

Each increase of 1 percent in real disposable personal income per capita will increase the share of the electorate for an incumbent by about 2.2 percentage points, other things being equal. Since 1952 there has been a decline in real disposable income during only one presidential election year. The incumbent lost that election.
Which of the following conclusions can be properly drawn from the statements above?
(A) When an incumbent runs for office, he or she is likely to win.
(B) Political parties should take care to put forth a candidate who seems prosperous.
(C) Presidential candidates should put their greatest efforts into improving their public image.
(D) Because a presidential campaign requires the expenditure of large amounts of money, it frequently impoverishes a candidate and his or her supporters.（E）
(E) The outcome of a presidential election is substantially affected by factors other than the ideological positions of the candidates.
请帮我解释分析思路。
谢谢。

meckychen

谢谢。

flames001

这道题的逻辑：可支配收入的增量影响竞选支持率。
A项：一位政客竞选，他可能会赢。 无关项
B项：政党应该支持那些有钱的候选人。无关项。
C项：总统候选人应该致力于提高自身公众形象。 无关
D项：竞选总统是件花钱的事，所以竞选会耗尽他的支持者的财力。无关
E项：除了政治立场外，总统竞选结果还受其他因素的影响。潜台词就是说，可支配收入的增量影响竞选支持率。