大全－Ｂ－19

19.   The U.S. census is not perfect: thousands of Americans probably go uncounted. However, the basic statistical portrait of the nation painted by the census is accurate. Certainly some of the poor go uncounted, particularly the homeless; but some of the rich go uncounted as well, because they are often abroad or traveling between one residence and another.

Which of the following is an assumption on which the argument above depends?

(A) Both the rich and the poor have personal and economic reasons to avoid being counted by the census.

(B) All Americans may reasonably be classified as either poor or rich.

(C) The percentage of poor Americans uncounted by the census is close to the percentage of rich Americans uncounted.

(D) The number of homeless Americans is approximately equal to the number of rich Americans.（C）

(E) The primary purpose of the census is to analyze the economic status of the American population.

不好意思，今天刚入手做Ｇ逻辑题，已经问了好几个问题了。

这题中close percentage　是怎么得出来的？

是的。

我开始的一个concern是，那中产阶级呢？如果只是富人和穷人少了，中产阶级没变，这个统计图也会有问题。后来一想，中产阶级没提，就别管他。这是ETS老是拿来迷惑人的。